389954875 has 16 divisors (see below), whose sum is σ = 487352736. Its totient is φ = 311522400.

The previous prime is 389954869. The next prime is 389954881. The reversal of 389954875 is 578459983.

It is an interprime number because it is at equal distance from previous prime (389954869) and next prime (389954881).

It is not a de Polignac number, because 389954875 - 2²³ = 381566267 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 108609 + ... + 112141.

It is an arithmetic number, because the mean of its divisors is an integer number (30459546).

Almost surely, 2^389954875 is an apocalyptic number.

389954875 is a deficient number, since it is larger than the sum of its proper divisors (97397861).

389954875 is an equidigital number, since it uses as much as digits as its factorization.

389954875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4431 (or 4421 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 58.

The square root of 389954875 is about 19747.2751284829. The cubic root of 389954875 is about 730.5861777101.

The spelling of 389954875 in words is "three hundred eighty-nine million, nine hundred fifty-four thousand, eight hundred seventy-five".