9987799201 has 32 divisors (see below), whose sum is σ = 10836218880. Its totient is φ = 9184224000.

The previous prime is 9987799187. The next prime is 9987799229. The reversal of 9987799201 is 1029977899.

It is a cyclic number.

It is not a de Polignac number, because 9987799201 - 2¹¹ = 9987797153 is a prime.

It is a super-2 number, since 2×9987799201² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9987799201.

It is not an unprimeable number, because it can be changed into a prime (9987799231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28783110 + ... + 28783456.

It is an arithmetic number, because the mean of its divisors is an integer number (338631840).

Almost surely, 2^9987799201 is an apocalyptic number.

It is an amenable number.

9987799201 is a deficient number, since it is larger than the sum of its proper divisors (848419679).

9987799201 is a wasteful number, since it uses less digits than its factorization.

9987799201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825.

The product of its (nonzero) digits is 5143824, while the sum is 61.

The square root of 9987799201 is about 99938.9773862030. The cubic root of 9987799201 is about 2153.5581392941.

The spelling of 9987799201 in words is "nine billion, nine hundred eighty-seven million, seven hundred ninety-nine thousand, two hundred one".