9931372 has 24 divisors (see below), whose sum is σ = 19115712. Its totient is φ = 4477200.

The previous prime is 9931367. The next prime is 9931379. The reversal of 9931372 is 2731399.

9931372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (9931379) 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, 4903 + ... + 6625.

It is an arithmetic number, because the mean of its divisors is an integer number (796488).

Almost surely, 2^9931372 is an apocalyptic number.

It is an amenable number.

9931372 is a deficient number, since it is larger than the sum of its proper divisors (9184340).

9931372 is a wasteful number, since it uses less digits than its factorization.

9931372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869 (or 1867 counting only the distinct ones).

The product of its digits is 10206, while the sum is 34.

The square root of 9931372 is about 3151.4079393186. The cubic root of 9931372 is about 214.9494887650.

The spelling of 9931372 in words is "nine million, nine hundred thirty-one thousand, three hundred seventy-two".