8709897 has 24 divisors (see below), whose sum is σ = 13623456. Its totient is φ = 4935168.

The previous prime is 8709871. The next prime is 8709913. The reversal of 8709897 is 7989078.

8709897 = 109² + 110² + ... + 301².

It is not a de Polignac number, because 8709897 - 2²⁰ = 7661321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8709817) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28218 + ... + 28524.

It is an arithmetic number, because the mean of its divisors is an integer number (567644).

Almost surely, 2^8709897 is an apocalyptic number.

It is an amenable number.

8709897 is a deficient number, since it is larger than the sum of its proper divisors (4913559).

8709897 is a wasteful number, since it uses less digits than its factorization.

8709897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 48.

The square root of 8709897 is about 2951.2534625139. The cubic root of 8709897 is about 205.7489715680.

The spelling of 8709897 in words is "eight million, seven hundred nine thousand, eight hundred ninety-seven".