389956023 has 12 divisors (see below), whose sum is σ = 565690320. Its totient is φ = 258853536.

The previous prime is 389956009. The next prime is 389956027. The reversal of 389956023 is 320659983.

389956023 is a `hidden beast` number, since 3 + 89 + 9 + 560 + 2 + 3 = 666.

It is not a de Polignac number, because 389956023 - 2⁵ = 389955991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 389956023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389956027) 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 in 11 ways as a sum of consecutive naturals, for example, 90883 + ... + 95076.

It is an arithmetic number, because the mean of its divisors is an integer number (47140860).

Almost surely, 2^389956023 is an apocalyptic number.

389956023 is a deficient number, since it is larger than the sum of its proper divisors (175734297).

389956023 is a wasteful number, since it uses less digits than its factorization.

389956023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186198 (or 186195 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 389956023 is about 19747.3041957630. The cubic root of 389956023 is about 730.5868946410.

The spelling of 389956023 in words is "three hundred eighty-nine million, nine hundred fifty-six thousand, twenty-three".