9972385924 has 24 divisors (see below), whose sum is σ = 17673798240. Its totient is φ = 4922810304.

The previous prime is 9972385921. The next prime is 9972385937. The reversal of 9972385924 is 4295832799.

It is not an unprimeable number, because it can be changed into a prime (9972385921) 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, 528232 + ... + 546784.

It is an arithmetic number, because the mean of its divisors is an integer number (736408260).

Almost surely, 2^9972385924 is an apocalyptic number.

It is an amenable number.

9972385924 is a deficient number, since it is larger than the sum of its proper divisors (7701412316).

9972385924 is a wasteful number, since it uses less digits than its factorization.

9972385924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20259 (or 20257 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 58.

The square root of 9972385924 is about 99861.8341710185. The cubic root of 9972385924 is about 2152.4497710768.

The spelling of 9972385924 in words is "nine billion, nine hundred seventy-two million, three hundred eighty-five thousand, nine hundred twenty-four".