9720897075 has 120 divisors (see below), whose sum is σ = 19682847360. Its totient is φ = 4721587200.

The previous prime is 9720897073. The next prime is 9720897103. The reversal of 9720897075 is 5707980279.

It is not a de Polignac number, because 9720897075 - 2¹ = 9720897073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9720897073) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1062621 + ... + 1071729.

It is an arithmetic number, because the mean of its divisors is an integer number (164023728).

Almost surely, 2^9720897075 is an apocalyptic number.

9720897075 is an abundant number, since it is smaller than the sum of its proper divisors (9961950285).

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

9720897075 is a wasteful number, since it uses less digits than its factorization.

9720897075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9179 (or 9165 counting only the distinct ones).

The product of its (nonzero) digits is 2222640, while the sum is 54.

The square root of 9720897075 is about 98594.6097664573. The cubic root of 9720897075 is about 2134.2016349966.

The spelling of 9720897075 in words is "nine billion, seven hundred twenty million, eight hundred ninety-seven thousand, seventy-five".