389255966 has 8 divisors (see below), whose sum is σ = 636964344. Its totient is φ = 176934520.

The previous prime is 389255963. The next prime is 389256001. The reversal of 389255966 is 669552983.

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 (389255963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8846705 + ... + 8846748.

It is an arithmetic number, because the mean of its divisors is an integer number (79620543).

Almost surely, 2^389255966 is an apocalyptic number.

389255966 is a deficient number, since it is larger than the sum of its proper divisors (247708378).

389255966 is a wasteful number, since it uses less digits than its factorization.

389255966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17693466.

The product of its digits is 3499200, while the sum is 53.

The square root of 389255966 is about 19729.5708518964. The cubic root of 389255966 is about 730.1494446024.

The spelling of 389255966 in words is "three hundred eighty-nine million, two hundred fifty-five thousand, nine hundred sixty-six".