897579772 has 24 divisors (see below), whose sum is σ = 1588080816. Its totient is φ = 443856768.

The previous prime is 897579737. The next prime is 897579827. The reversal of 897579772 is 277975798.

It is a self number, because there is not a number n which added to its sum of digits gives 897579772.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329488 + ... + 332200.

It is an arithmetic number, because the mean of its divisors is an integer number (66170034).

Almost surely, 2^897579772 is an apocalyptic number.

It is an amenable number.

897579772 is a deficient number, since it is larger than the sum of its proper divisors (690501044).

897579772 is a wasteful number, since it uses less digits than its factorization.

897579772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597 (or 3595 counting only the distinct ones).

The product of its digits is 15558480, while the sum is 61.

The square root of 897579772 is about 29959.6357120710. The cubic root of 897579772 is about 964.6231615856.

The spelling of 897579772 in words is "eight hundred ninety-seven million, five hundred seventy-nine thousand, seven hundred seventy-two".