989328808 has 64 divisors (see below), whose sum is σ = 2096317440. Its totient is φ = 434294784.

The previous prime is 989328773. The next prime is 989328817. The reversal of 989328808 is 808823989.

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, 460585 + ... + 462727.

It is an arithmetic number, because the mean of its divisors is an integer number (32754960).

Almost surely, 2^989328808 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 989328808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048158720).

989328808 is an abundant number, since it is smaller than the sum of its proper divisors (1106988632).

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

989328808 is a wasteful number, since it uses less digits than its factorization.

989328808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378 (or 2374 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 55.

The square root of 989328808 is about 31453.5976956532. The cubic root of 989328808 is about 996.4302077471.

The spelling of 989328808 in words is "nine hundred eighty-nine million, three hundred twenty-eight thousand, eight hundred eight".