389857725 has 48 divisors (see below), whose sum is σ = 733703040. Its totient is φ = 202838400.

The previous prime is 389857717. The next prime is 389857729. The reversal of 389857725 is 527758983.

It is not a de Polignac number, because 389857725 - 2³ = 389857717 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389857729) 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 47 ways as a sum of consecutive naturals, for example, 20632 + ... + 34718.

It is an arithmetic number, because the mean of its divisors is an integer number (15285480).

Almost surely, 2^389857725 is an apocalyptic number.

It is an amenable number.

389857725 is a deficient number, since it is larger than the sum of its proper divisors (343845315).

389857725 is a wasteful number, since it uses less digits than its factorization.

389857725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14147 (or 14136 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 389857725 is about 19744.8151422089. The cubic root of 389857725 is about 730.5255020211.

The spelling of 389857725 in words is "three hundred eighty-nine million, eight hundred fifty-seven thousand, seven hundred twenty-five".