9988000872 has 16 divisors (see below), whose sum is σ = 24970002240. Its totient is φ = 3329333616.

The previous prime is 9988000829. The next prime is 9988000873. The reversal of 9988000872 is 2780008899.

It is a super-2 number, since 2×9988000872² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9988000873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208083328 + ... + 208083375.

It is an arithmetic number, because the mean of its divisors is an integer number (1560625140).

Almost surely, 2^9988000872 is an apocalyptic number.

It is an amenable number.

9988000872 is an abundant number, since it is smaller than the sum of its proper divisors (14982001368).

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

9988000872 is a wasteful number, since it uses less digits than its factorization.

9988000872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416166712 (or 416166708 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 9988000872 is about 99939.9863518102. The cubic root of 9988000872 is about 2153.5726338887.

The spelling of 9988000872 in words is "nine billion, nine hundred eighty-eight million, eight hundred seventy-two", and thus it is an aban number.