564749688 has 16 divisors (see below), whose sum is σ = 1411874280. Its totient is φ = 188249888.

The previous prime is 564749671. The next prime is 564749693. The reversal of 564749688 is 886947465.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11765595 + ... + 11765642.

Almost surely, 2^564749688 is an apocalyptic number.

It is an amenable number.

564749688 is an abundant number, since it is smaller than the sum of its proper divisors (847124592).

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

564749688 is a wasteful number, since it uses less digits than its factorization.

564749688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23531246 (or 23531242 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 57.

The square root of 564749688 is about 23764.4627122096. The cubic root of 564749688 is about 826.5808381524.

The spelling of 564749688 in words is "five hundred sixty-four million, seven hundred forty-nine thousand, six hundred eighty-eight".