564973980 has 48 divisors (see below), whose sum is σ = 1604219904. Its totient is φ = 148536640.

The previous prime is 564973961. The next prime is 564973991. The reversal of 564973980 is 89379465.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62052 + ... + 70571.

It is an arithmetic number, because the mean of its divisors is an integer number (33421248).

Almost surely, 2^564973980 is an apocalyptic number.

It is an amenable number.

564973980 is an abundant number, since it is smaller than the sum of its proper divisors (1039245924).

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

564973980 is a wasteful number, since it uses less digits than its factorization.

564973980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132706 (or 132704 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The square root of 564973980 is about 23769.1813068940. The cubic root of 564973980 is about 826.6902500065.

The spelling of 564973980 in words is "five hundred sixty-four million, nine hundred seventy-three thousand, nine hundred eighty".