989715198 has 16 divisors (see below), whose sum is σ = 1980689040. Its totient is φ = 329695296.

The previous prime is 989715173. The next prime is 989715217. The reversal of 989715198 is 891517989.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42063 + ... + 61226.

It is an arithmetic number, because the mean of its divisors is an integer number (123793065).

Almost surely, 2^989715198 is an apocalyptic number.

989715198 is an abundant number, since it is smaller than the sum of its proper divisors (990973842).

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

989715198 is a wasteful number, since it uses less digits than its factorization.

989715198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104891.

The product of its digits is 1632960, while the sum is 57.

The square root of 989715198 is about 31459.7393186911. The cubic root of 989715198 is about 996.5599120317.

The spelling of 989715198 in words is "nine hundred eighty-nine million, seven hundred fifteen thousand, one hundred ninety-eight".