897028656 has 40 divisors (see below), whose sum is σ = 2318772720. Its totient is φ = 298822656.

The previous prime is 897028631. The next prime is 897028661. The reversal of 897028656 is 656820798.

897028656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 897028599 and 897028608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86940 + ... + 96708.

It is an arithmetic number, because the mean of its divisors is an integer number (57969318).

Almost surely, 2^897028656 is an apocalyptic number.

It is an amenable number.

897028656 is an abundant number, since it is smaller than the sum of its proper divisors (1421744064).

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

897028656 is a wasteful number, since it uses less digits than its factorization.

897028656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11693 (or 11687 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 897028656 is about 29950.4366579187. The cubic root of 897028656 is about 964.4256942343.

The spelling of 897028656 in words is "eight hundred ninety-seven million, twenty-eight thousand, six hundred fifty-six".