389553956 has 24 divisors (see below), whose sum is σ = 761836320. Its totient is φ = 172750400.

The previous prime is 389553947. The next prime is 389553959. The reversal of 389553956 is 659355983.

It is a junction number, because it is equal to n+sod(n) for n = 389553898 and 389553907.

It is not an unprimeable number, because it can be changed into a prime (389553959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106166 + ... + 109773.

It is an arithmetic number, because the mean of its divisors is an integer number (31743180).

Almost surely, 2^389553956 is an apocalyptic number.

It is an amenable number.

389553956 is a deficient number, since it is larger than the sum of its proper divisors (372282364).

389553956 is a wasteful number, since it uses less digits than its factorization.

389553956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215995 (or 215993 counting only the distinct ones).

The product of its digits is 4374000, while the sum is 53.

The square root of 389553956 is about 19737.1212693240. The cubic root of 389553956 is about 730.3357159803.

The spelling of 389553956 in words is "three hundred eighty-nine million, five hundred fifty-three thousand, nine hundred fifty-six".