389851976 has 32 divisors (see below), whose sum is σ = 747273600. Its totient is φ = 190616640.

The previous prime is 389851967. The next prime is 389851991. The reversal of 389851976 is 679158983.

It is a super-2 number, since 2×389851976² = 303969126382209152, which contains 22 as substring.

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, 85121 + ... + 89583.

It is an arithmetic number, because the mean of its divisors is an integer number (23352300).

Almost surely, 2^389851976 is an apocalyptic number.

It is an amenable number.

389851976 is a deficient number, since it is larger than the sum of its proper divisors (357421624).

389851976 is a wasteful number, since it uses less digits than its factorization.

389851976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4709 (or 4705 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 56.

The square root of 389851976 is about 19744.6695591494. The cubic root of 389851976 is about 730.5219111284.

The spelling of 389851976 in words is "three hundred eighty-nine million, eight hundred fifty-one thousand, nine hundred seventy-six".