564700728 has 64 divisors (see below), whose sum is σ = 1433203200. Its totient is φ = 185391360.

The previous prime is 564700727. The next prime is 564700751. The reversal of 564700728 is 827007465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564700727) 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, 988683 + ... + 989253.

It is an arithmetic number, because the mean of its divisors is an integer number (22393800).

Almost surely, 2^564700728 is an apocalyptic number.

It is an amenable number.

564700728 is an abundant number, since it is smaller than the sum of its proper divisors (868502472).

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

564700728 is a wasteful number, since it uses less digits than its factorization.

564700728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 564700728 is about 23763.4325803323. The cubic root of 564700728 is about 826.5569511288.

The spelling of 564700728 in words is "five hundred sixty-four million, seven hundred thousand, seven hundred twenty-eight".