938970657 has 8 divisors (see below), whose sum is σ = 1391067680. Its totient is φ = 625980420.

The previous prime is 938970649. The next prime is 938970667. The reversal of 938970657 is 756079839.

It is not a de Polignac number, because 938970657 - 2³ = 938970649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (938970647) 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, 17388319 + ... + 17388372.

It is an arithmetic number, because the mean of its divisors is an integer number (173883460).

Almost surely, 2^938970657 is an apocalyptic number.

It is an amenable number.

938970657 is a deficient number, since it is larger than the sum of its proper divisors (452097023).

938970657 is a wasteful number, since it uses less digits than its factorization.

938970657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34776700 (or 34776694 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 54.

The square root of 938970657 is about 30642.6281020411. The cubic root of 938970657 is about 979.2284142532.

The spelling of 938970657 in words is "nine hundred thirty-eight million, nine hundred seventy thousand, six hundred fifty-seven".