9721480 has 32 divisors (see below), whose sum is σ = 22343040. Its totient is φ = 3805120.

The previous prime is 9721477. The next prime is 9721511. The reversal of 9721480 is 841279.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706 + ... + 4465.

It is an arithmetic number, because the mean of its divisors is an integer number (698220).

Almost surely, 2^9721480 is an apocalyptic number.

It is an amenable number.

9721480 is an abundant number, since it is smaller than the sum of its proper divisors (12621560).

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

9721480 is a wasteful number, since it uses less digits than its factorization.

9721480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5229 (or 5225 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 9721480 is about 3117.9287997002. The cubic root of 9721480 is about 213.4244294112.

It can be divided in two parts, 9721 and 480, that added together give a palindrome (10201).

The spelling of 9721480 in words is "nine million, seven hundred twenty-one thousand, four hundred eighty".