897985808 has 20 divisors (see below), whose sum is σ = 1743788688. Its totient is φ = 447975840.

The previous prime is 897985787. The next prime is 897985831. The reversal of 897985808 is 808589798.

It is a super-2 number, since 2×897985808² = 1612757022738825728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56258 + ... + 70433.

Almost surely, 2^897985808 is an apocalyptic number.

It is an amenable number.

897985808 is a deficient number, since it is larger than the sum of its proper divisors (845802880).

897985808 is a wasteful number, since it uses less digits than its factorization.

897985808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127142 (or 127136 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 62.

The square root of 897985808 is about 29966.4113300208. The cubic root of 897985808 is about 964.7685944104.

It can be divided in two parts, 89 and 7985808, that added together give a palindrome (7985897).

The spelling of 897985808 in words is "eight hundred ninety-seven million, nine hundred eighty-five thousand, eight hundred eight".