389668966 has 8 divisors (see below), whose sum is σ = 586832904. Its totient is φ = 194058000.

The previous prime is 389668933. The next prime is 389668973. The reversal of 389668966 is 669866983.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387615 + ... + 388618.

It is an arithmetic number, because the mean of its divisors is an integer number (73354113).

Almost surely, 2^389668966 is an apocalyptic number.

389668966 is a deficient number, since it is larger than the sum of its proper divisors (197163938).

389668966 is a wasteful number, since it uses less digits than its factorization.

389668966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776486.

The product of its digits is 20155392, while the sum is 61.

The square root of 389668966 is about 19740.0345997670. The cubic root of 389668966 is about 730.4075824869.

The spelling of 389668966 in words is "three hundred eighty-nine million, six hundred sixty-eight thousand, nine hundred sixty-six".