9931672 has 32 divisors (see below), whose sum is σ = 19936800. Its totient is φ = 4621824.

The previous prime is 9931639. The next prime is 9931709. The reversal of 9931672 is 2761399.

9931672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13654 + ... + 14362.

It is an arithmetic number, because the mean of its divisors is an integer number (623025).

Almost surely, 2^9931672 is an apocalyptic number.

It is an amenable number.

9931672 is an abundant number, since it is smaller than the sum of its proper divisors (10005128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9931672 is a wasteful number, since it uses less digits than its factorization.

9931672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835 (or 831 counting only the distinct ones).

The product of its digits is 20412, while the sum is 37.

The square root of 9931672 is about 3151.4555367322. The cubic root of 9931672 is about 214.9516530916.

The spelling of 9931672 in words is "nine million, nine hundred thirty-one thousand, six hundred seventy-two".