989117194 has 16 divisors (see below), whose sum is σ = 1598688000. Its totient is φ = 456263280.

The previous prime is 989117191. The next prime is 989117197. The reversal of 989117194 is 491711989.

It is an interprime number because it is at equal distance from previous prime (989117191) and next prime (989117197).

It is not an unprimeable number, because it can be changed into a prime (989117191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42459 + ... + 61489.

It is an arithmetic number, because the mean of its divisors is an integer number (99918000).

Almost surely, 2^989117194 is an apocalyptic number.

989117194 is a deficient number, since it is larger than the sum of its proper divisors (609570806).

989117194 is a wasteful number, since it uses less digits than its factorization.

989117194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21045.

The product of its digits is 163296, while the sum is 49.

The square root of 989117194 is about 31450.2336080354. The cubic root of 989117194 is about 996.3591583595.

The spelling of 989117194 in words is "nine hundred eighty-nine million, one hundred seventeen thousand, one hundred ninety-four".