9727320912 has 20 divisors (see below), whose sum is σ = 25128912480. Its totient is φ = 3242440288.

The previous prime is 9727320907. The next prime is 9727320913. The reversal of 9727320912 is 2190237279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9727320913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101326212 + ... + 101326307.

It is an arithmetic number, because the mean of its divisors is an integer number (1256445624).

Almost surely, 2^9727320912 is an apocalyptic number.

It is an amenable number.

9727320912 is an abundant number, since it is smaller than the sum of its proper divisors (15401591568).

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

9727320912 is a wasteful number, since it uses less digits than its factorization.

9727320912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202652530 (or 202652524 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 9727320912 is about 98627.1814055334. The cubic root of 9727320912 is about 2134.6716445887.

The spelling of 9727320912 in words is "nine billion, seven hundred twenty-seven million, three hundred twenty thousand, nine hundred twelve".