3437
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 17
- Digital Root
- 8
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 3
Divisibility
- Divisor Count
- 4
- Divisor Sum
- 3936
- Proper Divisor Sum (Aliquot Sum)
- 499
- 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
- 2940
- Möbius Function
- 1
- Radical
- 3437
- Omega Function (Ω)
- 2
- 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
- 149
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- yes
- Squarefree Number
- yes
- 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
- Coordination sequence T2 for Zeolite Code RTE.at n=40A009891
- Sum of gcd(x, y) for 1 <= x, y <= n.at n=36A018806
- Partial sums of the sequence of prime powers (A000961).at n=51A024918
- a(n) = T(2*n-1, n-2), where T is given by A026519.at n=6A026529
- Numbers k such that 95*2^k+1 is prime.at n=24A032397
- Concatenation of n and n + 3.at n=33A032608
- Shifts left under transform T where Ta is phi DCONV a.at n=39A038045
- One-dimensional cellular automaton 'sigma' (Rule 150).at n=11A038185
- Coordination sequence T5 for Zeolite Code ESV.at n=39A038414
- Coordination sequence T10 for Zeolite Code STT.at n=39A038422
- Numbers having four 2's in base 5.at n=20A043360
- Numbers having three 5's in base 8.at n=26A043443
- Numbers n such that string 3,7 occurs in the base 10 representation of n but not of n-1.at n=38A044369
- Numbers n such that string 3,7 occurs in the base 10 representation of n but not of n+1.at n=38A044750
- Concatenate "n" and "nextprime(n)".at n=33A049852
- Handsome numbers (A007532) representable as a sum of any positive powers of their digits in two distinct ways, not counting different powers of duplicated digits as distinct.at n=25A050240
- Number of factorizations with 3 levels of parentheses indexed by prime signatures. A050340(A025487).at n=22A050341
- Expansion of Product_{m>=1} (1+x^m)^A000009(m).at n=19A050342
- Discriminants of real quadratic fields with class number 1 and related continued fraction period length of 10.at n=18A050959
- Concatenation of n in base 2 up to base 10 is prime, all numbers are interpreted as decimals.at n=36A054256