389927966 has 8 divisors (see below), whose sum is σ = 588394800. Its totient is φ = 193796368.

The previous prime is 389927959. The next prime is 389927969. The reversal of 389927966 is 669729983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389927969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583391 + ... + 584058.

It is an arithmetic number, because the mean of its divisors is an integer number (73549350).

Almost surely, 2^389927966 is an apocalyptic number.

389927966 is a deficient number, since it is larger than the sum of its proper divisors (198466834).

389927966 is a wasteful number, since it uses less digits than its factorization.

389927966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167618.

The product of its digits is 8817984, while the sum is 59.

The square root of 389927966 is about 19746.5937822198. The cubic root of 389927966 is about 730.5693725215.

The spelling of 389927966 in words is "three hundred eighty-nine million, nine hundred twenty-seven thousand, nine hundred sixty-six".