Properties of the Number 897

Eight Hundred Ninety-Seven

Basics

Value: 896 → 897 → 898

Parity: odd

Prime: No

Previous Prime: 887

Next Prime: 907

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 13 × 23

Divisors: 1, 3, 13, 23, 39, 69, 299, 897

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 1110000001

Octal: 1601

Duodecimal: 629

Hexadecimal: 381

Square: 804609

Square Root: 29.949958263743873

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: Yes

OEIS Sequences

Cullen numbers: a(n) = n·2ⁿ + 1. A2064

Generalized 12-gonal numbers: k*(5·k-4) for k = 0, +-1, +-2, ... A195162

Numbers which are the sum of 3 nonzero 4th powers. A3337

Number of strict integer partitions of n with no adjacent parts having quotient >= 2. A342097

a(n) = n² - 3. A28872

Numbers that are the sum of 8 positive 7th powers. A3375

Products of exactly three distinct odd primes. A46389

a(n) = n*(n + 7)/2. A55999

a(1)=1, a(n)=a(n-1)+n if n odd, a(n)=a(n-1)+ n² if n is even. A140113

G.f.: ∏_k>=1 1/(1+x^k)^k. A255528