8987117892 has 48 divisors (see below), whose sum is σ = 21456090432. Its totient is φ = 2927024640.

The previous prime is 8987117891. The next prime is 8987117897. The reversal of 8987117892 is 2987117898.

It is not an unprimeable number, because it can be changed into a prime (8987117891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45792 + ... + 141672.

It is an arithmetic number, because the mean of its divisors is an integer number (447001884).

Almost surely, 2^8987117892 is an apocalyptic number.

It is an amenable number.

8987117892 is an abundant number, since it is smaller than the sum of its proper divisors (12468972540).

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

8987117892 is a wasteful number, since it uses less digits than its factorization.

8987117892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96068 (or 96066 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 60.

The square root of 8987117892 is about 94800.4108218946. The cubic root of 8987117892 is about 2079.0909097428.

The spelling of 8987117892 in words is "eight billion, nine hundred eighty-seven million, one hundred seventeen thousand, eight hundred ninety-two".