938112921 has 56 divisors (see below), whose sum is σ = 1515684960. Its totient is φ = 578192256.

The previous prime is 938112907. The next prime is 938112941. The reversal of 938112921 is 129211839.

It is not a de Polignac number, because 938112921 - 2¹⁵ = 938080153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (938112941) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 730546 + ... + 731828.

Almost surely, 2^938112921 is an apocalyptic number.

It is an amenable number.

938112921 is a deficient number, since it is larger than the sum of its proper divisors (577572039).

938112921 is a wasteful number, since it uses less digits than its factorization.

938112921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377 (or 1362 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 938112921 is about 30628.6291074217. The cubic root of 938112921 is about 978.9301531243.

The spelling of 938112921 in words is "nine hundred thirty-eight million, one hundred twelve thousand, nine hundred twenty-one".