389335966 has 4 divisors (see below), whose sum is σ = 584003952. Its totient is φ = 194667982.

The previous prime is 389335949. The next prime is 389335967. The reversal of 389335966 is 669533983.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389335967) 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 as a sum of consecutive naturals, namely, 97333990 + ... + 97333993.

It is an arithmetic number, because the mean of its divisors is an integer number (146000988).

Almost surely, 2^389335966 is an apocalyptic number.

389335966 is a deficient number, since it is larger than the sum of its proper divisors (194667986).

389335966 is a wasteful number, since it uses less digits than its factorization.

389335966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194667985.

The product of its digits is 3149280, while the sum is 52.

The square root of 389335966 is about 19731.5981613249. The cubic root of 389335966 is about 730.1994613519.

The spelling of 389335966 in words is "three hundred eighty-nine million, three hundred thirty-five thousand, nine hundred sixty-six".