238788957 has 16 divisors (see below), whose sum is σ = 347604480. Its totient is φ = 144606000.

The previous prime is 238788943. The next prime is 238788971. The reversal of 238788957 is 759887832.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (238788943) and next prime (238788971).

It is not a de Polignac number, because 238788957 - 2⁸ = 238788701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 238788897 and 238788906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238788757) 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, 60082 + ... + 63932.

It is an arithmetic number, because the mean of its divisors is an integer number (21725280).

Almost surely, 2^238788957 is an apocalyptic number.

It is an amenable number.

238788957 is a deficient number, since it is larger than the sum of its proper divisors (108815523).

238788957 is a wasteful number, since it uses less digits than its factorization.

238788957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744.

The product of its digits is 6773760, while the sum is 57.

The square root of 238788957 is about 15452.7977078586. The cubic root of 238788957 is about 620.3994624831.

The spelling of 238788957 in words is "two hundred thirty-eight million, seven hundred eighty-eight thousand, nine hundred fifty-seven".