389396870 has 16 divisors (see below), whose sum is σ = 707119200. Its totient is φ = 154379904.

The previous prime is 389396869. The next prime is 389396893. The reversal of 389396870 is 78693983.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171170 + ... + 173429.

It is an arithmetic number, because the mean of its divisors is an integer number (44194950).

Almost surely, 2^389396870 is an apocalyptic number.

389396870 is a deficient number, since it is larger than the sum of its proper divisors (317722330).

389396870 is a wasteful number, since it uses less digits than its factorization.

389396870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344719.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 389396870 is about 19733.1414123550. The cubic root of 389396870 is about 730.2375345099.

The spelling of 389396870 in words is "three hundred eighty-nine million, three hundred ninety-six thousand, eight hundred seventy".