389330986 has 16 divisors (see below), whose sum is σ = 650643840. Its totient is φ = 173202880.

The previous prime is 389330971. The next prime is 389330989. The reversal of 389330986 is 689033983.

It is not an unprimeable number, because it can be changed into a prime (389330989) 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, 187231 + ... + 189298.

It is an arithmetic number, because the mean of its divisors is an integer number (40665240).

Almost surely, 2^389330986 is an apocalyptic number.

389330986 is a deficient number, since it is larger than the sum of its proper divisors (261312854).

389330986 is a wasteful number, since it uses less digits than its factorization.

389330986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376589.

The product of its (nonzero) digits is 839808, while the sum is 49.

The square root of 389330986 is about 19731.4719673926. The cubic root of 389330986 is about 730.1963480092.

The spelling of 389330986 in words is "three hundred eighty-nine million, three hundred thirty thousand, nine hundred eighty-six".