989018113 has 4 divisors (see below), whose sum is σ = 1013140548. Its totient is φ = 964895680.

The previous prime is 989018099. The next prime is 989018171. The reversal of 989018113 is 311810989.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 195356529 + 793661584 = 13977^2 + 28172^2 .

It is a cyclic number.

It is not a de Polignac number, because 989018113 - 2⁵ = 989018081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989018183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12061156 + ... + 12061237.

It is an arithmetic number, because the mean of its divisors is an integer number (253285137).

Almost surely, 2^989018113 is an apocalyptic number.

It is an amenable number.

989018113 is a deficient number, since it is larger than the sum of its proper divisors (24122435).

989018113 is a wasteful number, since it uses less digits than its factorization.

989018113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24122434.

The product of its (nonzero) digits is 15552, while the sum is 40.

The square root of 989018113 is about 31448.6583656601. The cubic root of 989018113 is about 996.3258884366.

The spelling of 989018113 in words is "nine hundred eighty-nine million, eighteen thousand, one hundred thirteen".