9722920 has 16 divisors (see below), whose sum is σ = 21876660. Its totient is φ = 3889152.

The previous prime is 9722893. The next prime is 9722939. The reversal of 9722920 is 292279.

It can be written as a sum of positive squares in 2 ways, for example, as 9597604 + 125316 = 3098^2 + 354^2 .

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, 121497 + ... + 121576.

Almost surely, 2^9722920 is an apocalyptic number.

It is an amenable number.

9722920 is an abundant number, since it is smaller than the sum of its proper divisors (12153740).

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

9722920 is a wasteful number, since it uses less digits than its factorization.

9722920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243084 (or 243080 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 9722920 is about 3118.1597136773. The cubic root of 9722920 is about 213.4349667644.

The spelling of 9722920 in words is "nine million, seven hundred twenty-two thousand, nine hundred twenty".