389591656 has 32 divisors (see below), whose sum is σ = 779486400. Its totient is φ = 182010240.

The previous prime is 389591519. The next prime is 389591659. The reversal of 389591656 is 656195983.

It is not an unprimeable number, because it can be changed into a prime (389591659) 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, 6460 + ... + 28651.

It is an arithmetic number, because the mean of its divisors is an integer number (24358950).

Almost surely, 2^389591656 is an apocalyptic number.

It is an amenable number.

389591656 is an abundant number, since it is smaller than the sum of its proper divisors (389894744).

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

389591656 is a wasteful number, since it uses less digits than its factorization.

389591656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35209 (or 35205 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 52.

The square root of 389591656 is about 19738.0762993763. The cubic root of 389591656 is about 730.3592752057.

The spelling of 389591656 in words is "three hundred eighty-nine million, five hundred ninety-one thousand, six hundred fifty-six".