564490389 has 16 divisors (see below), whose sum is σ = 818468928. Its totient is φ = 344616192.

The previous prime is 564490363. The next prime is 564490411. The reversal of 564490389 is 983094465.

It is not a de Polignac number, because 564490389 - 2²⁵ = 530935957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564490309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147687 + ... + 151460.

It is an arithmetic number, because the mean of its divisors is an integer number (51154308).

Almost surely, 2^564490389 is an apocalyptic number.

It is an amenable number.

564490389 is a deficient number, since it is larger than the sum of its proper divisors (253978539).

564490389 is a wasteful number, since it uses less digits than its factorization.

564490389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299204.

The product of its (nonzero) digits is 933120, while the sum is 48.

The square root of 564490389 is about 23759.0064817534. The cubic root of 564490389 is about 826.4543134281.

The spelling of 564490389 in words is "five hundred sixty-four million, four hundred ninety thousand, three hundred eighty-nine".