389983504 has 15 divisors (see below), whose sum is σ = 755746117. Its totient is φ = 194952256.

The previous prime is 389983481. The next prime is 389983507. The reversal of 389983504 is 405389983.

The square root of 389983504 is 19748.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 169520400 + 220463104 = 13020^2 + 14848^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389983507) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 76524 + ... + 81460.

Almost surely, 2^389983504 is an apocalyptic number.

389983504 is the 19748-th square number.

It is an amenable number.

389983504 is a deficient number, since it is larger than the sum of its proper divisors (365762613).

389983504 is an frugal number, since it uses more digits than its factorization.

389983504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9882 (or 4939 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The cubic root of 389983504 is about 730.6040562231.

Multiplying 389983504 by its sum of digits (49), we get a square (19109191696 = 138236²).

The spelling of 389983504 in words is "three hundred eighty-nine million, nine hundred eighty-three thousand, five hundred four".