8695
domain: N
Properties
Digital Properties
- Digit Count
- 4
- Digit Sum
- 28
- Digital Root
- 1
- Palindromic Number
- no
- Repdigit
- no
- Automorphic
- no
- Kaprekar Number
- no
- Multiplicative Persistence
- 2
Divisibility
- Divisor Count
- 8
- Divisor Sum
- 10944
- Proper Divisor Sum (Aliquot Sum)
- 2249
- 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
- 6624
- Möbius Function
- -1
- Radical
- 8695
- Omega Function (Ω)
- 3
- Little Omega Function (ω)
- 3
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
- 184
- Smith Number
- no
- Vampire Number
- no
Primality
- Prime
- no
- Composite Number
- yes
- Semiprime
- no
- 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
- Centered tetrahedral numbers.at n=23A005894
- Numbers k such that sigma(k) = sigma(k+6).at n=26A015866
- Fermat pseudoprimes to base 4.at n=40A020136
- Pseudoprimes to base 11.at n=26A020139
- Pseudoprimes to base 21.at n=21A020149
- Pseudoprimes to base 26.at n=42A020154
- Pseudoprimes to base 41.at n=44A020169
- Pseudoprimes to base 44.at n=43A020172
- Pseudoprimes to base 71.at n=39A020199
- Pseudoprimes to base 84.at n=25A020212
- Pseudoprimes to base 86.at n=37A020214
- Strong pseudoprimes to base 16.at n=32A020242
- Strong pseudoprimes to base 71.at n=10A020297
- Strong pseudoprimes to base 81.at n=19A020307
- Strong pseudoprimes to base 99.at n=15A020325
- Number of partitions of n into 7 unordered relatively prime parts.at n=43A023027
- Expansion of (1-x^8)*(1+x^5)/(1-x^2)^5.at n=46A027635
- Expansion of (1-x^8)*(1+x^5)/(1-x^2)^5.at n=51A027635
- Odd 10-gonal (or decagonal) numbers.at n=23A028993
- [ exp(6/11)*n! ].at n=6A030942