9972944 has 20 divisors (see below), whose sum is σ = 19596960. Its totient is φ = 4915680.

The previous prime is 9972913. The next prime is 9972973. The reversal of 9972944 is 4492799.

It is a super-2 number, since 2×9972944² = 198919224054272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9972895 and 9972904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3254 + ... + 5525.

It is an arithmetic number, because the mean of its divisors is an integer number (979848).

Almost surely, 2^9972944 is an apocalyptic number.

It is an amenable number.

9972944 is a deficient number, since it is larger than the sum of its proper divisors (9624016).

9972944 is a wasteful number, since it uses less digits than its factorization.

9972944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8858 (or 8852 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 9972944 is about 3157.9968334373. The cubic root of 9972944 is about 215.2489922222.

The spelling of 9972944 in words is "nine million, nine hundred seventy-two thousand, nine hundred forty-four".