389757387 has 8 divisors (see below), whose sum is σ = 520022080. Its totient is φ = 259665480.

The previous prime is 389757377. The next prime is 389757413. The reversal of 389757387 is 783757983.

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

It is not a de Polignac number, because 389757387 - 2⁷ = 389757259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389757307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37837 + ... + 47022.

It is an arithmetic number, because the mean of its divisors is an integer number (65002760).

Almost surely, 2^389757387 is an apocalyptic number.

389757387 is a deficient number, since it is larger than the sum of its proper divisors (130264693).

389757387 is a wasteful number, since it uses less digits than its factorization.

389757387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86393.

The product of its digits is 8890560, while the sum is 57.

The square root of 389757387 is about 19742.2741091294. The cubic root of 389757387 is about 730.4628246627.

The spelling of 389757387 in words is "three hundred eighty-nine million, seven hundred fifty-seven thousand, three hundred eighty-seven".