9722730 has 32 divisors (see below), whose sum is σ = 23880384. Its totient is φ = 2532096.

The previous prime is 9722723. The next prime is 9722771. The reversal of 9722730 is 372279.

9722730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 2479 + ... + 5058.

It is an arithmetic number, because the mean of its divisors is an integer number (746262).

Almost surely, 2^9722730 is an apocalyptic number.

9722730 is an abundant number, since it is smaller than the sum of its proper divisors (14157654).

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

9722730 is a wasteful number, since it uses less digits than its factorization.

9722730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7590.

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 9722730 is about 3118.1292468402. The cubic root of 9722730 is about 213.4335764788.

The spelling of 9722730 in words is "nine million, seven hundred twenty-two thousand, seven hundred thirty".