9897980320 has 48 divisors (see below), whose sum is σ = 23417228520. Its totient is φ = 3953562624.

The previous prime is 9897980299. The next prime is 9897980357. The reversal of 9897980320 is 230897989.

9897980320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4241135376 + 5656844944 = 65124^2 + 75212^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69814 + ... + 157066.

Almost surely, 2^9897980320 is an apocalyptic number.

It is an amenable number.

9897980320 is an abundant number, since it is smaller than the sum of its proper divisors (13519248200).

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

9897980320 is a wasteful number, since it uses less digits than its factorization.

9897980320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87977 (or 87969 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 55.

The square root of 9897980320 is about 99488.5939191021. The cubic root of 9897980320 is about 2147.0831417210.

The spelling of 9897980320 in words is "nine billion, eight hundred ninety-seven million, nine hundred eighty thousand, three hundred twenty".