9971372 has 6 divisors (see below), whose sum is σ = 17449908. Its totient is φ = 4985684.

The previous prime is 9971363. The next prime is 9971387. The reversal of 9971372 is 2731799.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1246418 + ... + 1246425.

It is an arithmetic number, because the mean of its divisors is an integer number (2908318).

Almost surely, 2^9971372 is an apocalyptic number.

It is an amenable number.

9971372 is a deficient number, since it is larger than the sum of its proper divisors (7478536).

9971372 is a wasteful number, since it uses less digits than its factorization.

9971372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492847 (or 2492845 counting only the distinct ones).

The product of its digits is 23814, while the sum is 38.

The square root of 9971372 is about 3157.7479316754. The cubic root of 9971372 is about 215.2376819814.

The spelling of 9971372 in words is "nine million, nine hundred seventy-one thousand, three hundred seventy-two".