389952975 has 24 divisors (see below), whose sum is σ = 645315840. Its totient is φ = 207783520.

The previous prime is 389952967. The next prime is 389952977. The reversal of 389952975 is 579259983.

It is not a de Polignac number, because 389952975 - 2³ = 389952967 is a prime.

It is a super-2 number, since 2×389952975² = 304126645422701250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389952977) 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 23 ways as a sum of consecutive naturals, for example, 123466 + ... + 126584.

It is an arithmetic number, because the mean of its divisors is an integer number (26888160).

Almost surely, 2^389952975 is an apocalyptic number.

389952975 is a deficient number, since it is larger than the sum of its proper divisors (255362865).

389952975 is a wasteful number, since it uses less digits than its factorization.

389952975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4799 (or 4794 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 57.

The square root of 389952975 is about 19747.2270205211. The cubic root of 389952975 is about 730.5849911489.

The spelling of 389952975 in words is "three hundred eighty-nine million, nine hundred fifty-two thousand, nine hundred seventy-five".