238875657 has 16 divisors (see below), whose sum is σ = 337412160. Its totient is φ = 149902272.

The previous prime is 238875649. The next prime is 238875661. The reversal of 238875657 is 756578832.

238875657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 238875657 - 2³ = 238875649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238875647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4398 + ... + 22295.

It is an arithmetic number, because the mean of its divisors is an integer number (21088260).

Almost surely, 2^238875657 is an apocalyptic number.

It is an amenable number.

238875657 is a deficient number, since it is larger than the sum of its proper divisors (98536503).

238875657 is a wasteful number, since it uses less digits than its factorization.

238875657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26872.

The product of its digits is 2822400, while the sum is 51.

The square root of 238875657 is about 15455.6027705166. The cubic root of 238875657 is about 620.4745387143.

The spelling of 238875657 in words is "two hundred thirty-eight million, eight hundred seventy-five thousand, six hundred fifty-seven".