389904 has 20 divisors (see below), whose sum is σ = 1007376. Its totient is φ = 129952.

The previous prime is 389903. The next prime is 389911. The reversal of 389904 is 409983.

It is not an unprimeable number, because it can be changed into a prime (389903) 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, 4014 + ... + 4109.

2³⁸⁹⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

389904 is an abundant number, since it is smaller than the sum of its proper divisors (617472).

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

389904 is a wasteful number, since it uses less digits than its factorization.

389904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8134 (or 8128 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 389904 is about 624.4229335955. The cubic root of 389904 is about 73.0554404642.

The spelling of 389904 in words is "three hundred eighty-nine thousand, nine hundred four".