238616957 has 2 divisors, whose sum is σ = 238616958. Its totient is φ = 238616956.

The previous prime is 238616929. The next prime is 238616999. The reversal of 238616957 is 759616832.

238616957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169494361 + 69122596 = 13019^2 + 8314^2 .

It is a cyclic number.

It is not a de Polignac number, because 238616957 - 2²² = 234422653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238616857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119308478 + 119308479.

It is an arithmetic number, because the mean of its divisors is an integer number (119308479).

Almost surely, 2^238616957 is an apocalyptic number.

It is an amenable number.

238616957 is a deficient number, since it is larger than the sum of its proper divisors (1).

238616957 is an equidigital number, since it uses as much as digits as its factorization.

238616957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 47.

The square root of 238616957 is about 15447.2313700546. The cubic root of 238616957 is about 620.2504685208.

The spelling of 238616957 in words is "two hundred thirty-eight million, six hundred sixteen thousand, nine hundred fifty-seven".