389564 has 12 divisors (see below), whose sum is σ = 779184. Its totient is φ = 166944.

The previous prime is 389563. The next prime is 389567. The reversal of 389564 is 465983.

389564 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

389564 is an admirable number.

It is a super-2 number, since 2×389564² = 303520220192, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6929 + ... + 6984.

It is an arithmetic number, because the mean of its divisors is an integer number (64932).

2³⁸⁹⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

389564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

389564 is a wasteful number, since it uses less digits than its factorization.

389564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13924 (or 13922 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 389564 is about 624.1506228468. The cubic root of 389564 is about 73.0341992756.

The spelling of 389564 in words is "three hundred eighty-nine thousand, five hundred sixty-four".