389965683 has 8 divisors (see below), whose sum is σ = 521252496. Its totient is φ = 259328000.

The previous prime is 389965657. The next prime is 389965687. The reversal of 389965683 is 386569983.

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

It is a cyclic number.

It is not a de Polignac number, because 389965683 - 2⁵ = 389965651 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389965687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160878 + ... + 163283.

It is an arithmetic number, because the mean of its divisors is an integer number (65156562).

Almost surely, 2^389965683 is an apocalyptic number.

389965683 is a deficient number, since it is larger than the sum of its proper divisors (131286813).

389965683 is a wasteful number, since it uses less digits than its factorization.

389965683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324565.

The product of its digits is 8398080, while the sum is 57.

The square root of 389965683 is about 19747.5487845960. The cubic root of 389965683 is about 730.5929272966.

The spelling of 389965683 in words is "three hundred eighty-nine million, nine hundred sixty-five thousand, six hundred eighty-three".