9972712 has 8 divisors (see below), whose sum is σ = 18698850. Its totient is φ = 4986352.

The previous prime is 9972691. The next prime is 9972713. The reversal of 9972712 is 2172799.

It can be written as a sum of positive squares in only one way, i.e., 5503716 + 4468996 = 2346^2 + 2114^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9972713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623287 + ... + 623302.

Almost surely, 2^9972712 is an apocalyptic number.

It is an amenable number.

9972712 is a deficient number, since it is larger than the sum of its proper divisors (8726138).

9972712 is a wasteful number, since it uses less digits than its factorization.

9972712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246595 (or 1246591 counting only the distinct ones).

The product of its digits is 15876, while the sum is 37.

The square root of 9972712 is about 3157.9601010779. The cubic root of 9972712 is about 215.2473231011.

The spelling of 9972712 in words is "nine million, nine hundred seventy-two thousand, seven hundred twelve".