938331657 has 6 divisors (see below), whose sum is σ = 1355367962. Its totient is φ = 625554432.

The previous prime is 938331649. The next prime is 938331659. The reversal of 938331657 is 756133839.

It can be written as a sum of positive squares in only one way, i.e., 743980176 + 194351481 = 27276^2 + 13941^2 .

It is not a de Polignac number, because 938331657 - 2³ = 938331649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (938331659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52129528 + ... + 52129545.

Almost surely, 2^938331657 is an apocalyptic number.

It is an amenable number.

938331657 is a deficient number, since it is larger than the sum of its proper divisors (417036305).

938331657 is a wasteful number, since it uses less digits than its factorization.

938331657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104259079 (or 104259076 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 938331657 is about 30632.1996761578. The cubic root of 938331657 is about 979.0062316080.

The spelling of 938331657 in words is "nine hundred thirty-eight million, three hundred thirty-one thousand, six hundred fifty-seven".