897311922 has 32 divisors (see below), whose sum is σ = 1944136320. Its totient is φ = 276091920.

The previous prime is 897311897. The next prime is 897311923. The reversal of 897311922 is 229113798.

It is not an unprimeable number, because it can be changed into a prime (897311923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20854 + ... + 47217.

It is an arithmetic number, because the mean of its divisors is an integer number (60754260).

Almost surely, 2^897311922 is an apocalyptic number.

897311922 is an abundant number, since it is smaller than the sum of its proper divisors (1046824398).

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

897311922 is a wasteful number, since it uses less digits than its factorization.

897311922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68115 (or 68089 counting only the distinct ones).

The product of its digits is 54432, while the sum is 42.

The square root of 897311922 is about 29955.1651973412. The cubic root of 897311922 is about 964.5271998201.

The spelling of 897311922 in words is "eight hundred ninety-seven million, three hundred eleven thousand, nine hundred twenty-two".