989879088 has 80 divisors (see below), whose sum is σ = 2793785472. Its totient is φ = 299520000.

The previous prime is 989879071. The next prime is 989879161. The reversal of 989879088 is 880978989.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 617488 + ... + 619088.

Almost surely, 2^989879088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989879088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1396892736).

989879088 is an abundant number, since it is smaller than the sum of its proper divisors (1803906384).

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

989879088 is a wasteful number, since it uses less digits than its factorization.

989879088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2794 (or 2788 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 66.

The square root of 989879088 is about 31462.3439686238. The cubic root of 989879088 is about 996.6149168081.

The spelling of 989879088 in words is "nine hundred eighty-nine million, eight hundred seventy-nine thousand, eighty-eight".