897598772 has 12 divisors (see below), whose sum is σ = 1795197600. Its totient is φ = 384685176.

The previous prime is 897598771. The next prime is 897598777. The reversal of 897598772 is 277895798.

897598772 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897598771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16028522 + ... + 16028577.

It is an arithmetic number, because the mean of its divisors is an integer number (149599800).

Almost surely, 2^897598772 is an apocalyptic number.

It is an amenable number.

897598772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

897598772 is a wasteful number, since it uses less digits than its factorization.

897598772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32057110 (or 32057108 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 62.

The square root of 897598772 is about 29959.9528037011. The cubic root of 897598772 is about 964.6299679299.

The spelling of 897598772 in words is "eight hundred ninety-seven million, five hundred ninety-eight thousand, seven hundred seventy-two".