7677
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 27
- Digital Root
- 9
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 6
- Divisor Sum
- 11102
- Proper Divisor Sum (Aliquot Sum)
- 3425
- Abundant Number
- no
- Perfect Number
- no
- Deficient Number
- yes
- Highly Composite
- no
- Weird Number
- no
- Untouchable Number
- no
- Primitive Abundant
- no
Derived Values
- Euler's Totient
- 5112
- Möbius Function
- 0
- Radical
- 2559
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 2
Special
- Factorial
- no
- Catalan Number
- no
- Bell Number
- no
- Motzkin Number
- no
- Primorial
- no
Figurate Numbers
- Fibonacci Number
- no
- Triangular Number
- no
- Perfect Square
- no
- Perfect Cube
- no
- Pentagonal Number
- no
- Hexagonal Number
- no
- Lucas Number
- no
- Tetrahedral Number
- no
- Pell Number
- no
- Tribonacci Number
- no
- Pronic Number
- no
Recreational
- Happy Number
- no
- Harshad Number
- no
- Narcissistic Number
- no
- Collatz Steps
- 132
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- Squarefree Number
- no
- Prime Power
- no
- Prime Factorization
- no
- Twin Prime
- no
- Mersenne Prime
- no
- Sophie Germain Prime
- no
- Safe Prime
- no
- Powerful Number
- no
- Achilles Number
- no
- Perfect Power
- no
- Smooth Number
- no
- Carmichael Number
- no
Classification
- Even
- no
- Odd
- yes
Appears in sequences
- Numbers k such that Fib(k) == -34 (mod k).at n=45A023169
- Pair up the numbers.at n=38A030656
- Lucky numbers that are decimal concatenations of n with n + 1.at n=10A032651
- Denominators of continued fraction convergents to sqrt(710).at n=11A042367
- Denominators of continued fraction convergents to sqrt(742).at n=7A042429
- Numbers having three 7's in base 10.at n=13A043519
- Numbers whose base-4 representation contains exactly three 1's and four 3's.at n=8A045128
- Number of nonnegative integer 4 X 4 matrices with sum of elements equal to n, under row and column permutations.at n=10A052366
- McKay-Thompson series of class 45b for Monster.at n=50A058686
- a(n) = ceiling(n*exp(n)).at n=7A058749
- a(0) = 0; a(n) is obtained by incrementing each digit of a(n-1) by 3.at n=9A061514
- a(n) = ceiling(a(n-1)/2) + a(n-2) with a(0)=0 and a(1)=1.at n=36A064651
- Interprimes which are of the form s*prime, s=9.at n=21A075284
- Partition the concatenation 1234567... of natural numbers into successive strings which are multiples of 3 all different and > 3. (0 never taken as the most significant digit.)at n=48A077296
- a(1) = 1, then the smallest number such that there are a(n) composite numbers between a(n) and a(n+1) both excluded.at n=10A082280
- The sixth column of triangle A091492, excluding leading zeros.at n=45A091498
- Molien series for certain 16-dimensional group of order 322560 arising from genus-2 weight enumerators of singly-even (but not necessarily self-dual or self-orthogonal) binary codes.at n=18A092351
- Duplicate of A082280.at n=10A097969
- Start with 1 and repeatedly reverse the digits and add 76 to get the next term.at n=38A118226
- Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1101-0111-0001 pattern in any orientation.at n=9A147238