697318940 has 12 divisors (see below), whose sum is σ = 1464369816. Its totient is φ = 278927568.

The previous prime is 697318927. The next prime is 697318967. The reversal of 697318940 is 49813796.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17432954 + ... + 17432993.

It is an arithmetic number, because the mean of its divisors is an integer number (122030818).

Almost surely, 2^697318940 is an apocalyptic number.

It is an amenable number.

697318940 is an abundant number, since it is smaller than the sum of its proper divisors (767050876).

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

697318940 is a wasteful number, since it uses less digits than its factorization.

697318940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34865956 (or 34865954 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 697318940 is about 26406.7972310161. The cubic root of 697318940 is about 886.7689686046.

The spelling of 697318940 in words is "six hundred ninety-seven million, three hundred eighteen thousand, nine hundred forty".