697609564 has 6 divisors (see below), whose sum is σ = 1220816744. Its totient is φ = 348804780.

The previous prime is 697609559. The next prime is 697609607. The reversal of 697609564 is 465906796.

697609564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87201192 + ... + 87201199.

Almost surely, 2^697609564 is an apocalyptic number.

It is an amenable number.

697609564 is a deficient number, since it is larger than the sum of its proper divisors (523207180).

697609564 is a wasteful number, since it uses less digits than its factorization.

697609564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174402395 (or 174402393 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 52.

The square root of 697609564 is about 26412.2994833846. The cubic root of 697609564 is about 886.8921454060.

The spelling of 697609564 in words is "six hundred ninety-seven million, six hundred nine thousand, five hundred sixty-four".