564001986 has 16 divisors (see below), whose sum is σ = 1155516768. Its totient is φ = 183415200.

The previous prime is 564001967. The next prime is 564002009. The reversal of 564001986 is 689100465.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146100 + ... + 1146591.

It is an arithmetic number, because the mean of its divisors is an integer number (72219798).

Almost surely, 2^564001986 is an apocalyptic number.

564001986 is an abundant number, since it is smaller than the sum of its proper divisors (591514782).

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

564001986 is a wasteful number, since it uses less digits than its factorization.

564001986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292737.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 564001986 is about 23748.7259868819. The cubic root of 564001986 is about 826.2158923425.

The spelling of 564001986 in words is "five hundred sixty-four million, one thousand, nine hundred eighty-six".