897045772 has 24 divisors (see below), whose sum is σ = 1800727040. Its totient is φ = 383026320.

The previous prime is 897045763. The next prime is 897045859. The reversal of 897045772 is 277540798.

It is a super-2 number, since 2×897045772² = 1609382234126151968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51522 + ... + 66697.

Almost surely, 2^897045772 is an apocalyptic number.

It is an amenable number.

897045772 is an abundant number, since it is smaller than the sum of its proper divisors (903681268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

897045772 is a wasteful number, since it uses less digits than its factorization.

897045772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118501 (or 118499 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 49.

The square root of 897045772 is about 29950.7223952946. The cubic root of 897045772 is about 964.4318281911.

The spelling of 897045772 in words is "eight hundred ninety-seven million, forty-five thousand, seven hundred seventy-two".