9720900936 has 64 divisors (see below), whose sum is σ = 27241531200. Its totient is φ = 3211617024.

The previous prime is 9720900907. The next prime is 9720900953. The reversal of 9720900936 is 6390090279.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 9720900891 and 9720900900.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174726 + ... + 223541.

It is an arithmetic number, because the mean of its divisors is an integer number (425648925).

Almost surely, 2^9720900936 is an apocalyptic number.

It is an amenable number.

9720900936 is an abundant number, since it is smaller than the sum of its proper divisors (17520630264).

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

9720900936 is a wasteful number, since it uses less digits than its factorization.

9720900936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398395 (or 398385 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 9720900936 is about 98594.6293466333. The cubic root of 9720900936 is about 2134.2019175546.

The spelling of 9720900936 in words is "nine billion, seven hundred twenty million, nine hundred thousand, nine hundred thirty-six".