990113599 has 16 divisors (see below), whose sum is σ = 1030487040. Its totient is φ = 950538240.

The previous prime is 990113587. The next prime is 990113603. The reversal of 990113599 is 995311099.

It is a cyclic number.

It is not a de Polignac number, because 990113599 - 2⁵ = 990113567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990113539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1544319 + ... + 1544959.

It is an arithmetic number, because the mean of its divisors is an integer number (64405440).

Almost surely, 2^990113599 is an apocalyptic number.

990113599 is a deficient number, since it is larger than the sum of its proper divisors (40373441).

990113599 is a wasteful number, since it uses less digits than its factorization.

990113599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170.

The product of its (nonzero) digits is 98415, while the sum is 46.

The square root of 990113599 is about 31466.0705999335. The cubic root of 990113599 is about 996.6936128527.

The spelling of 990113599 in words is "nine hundred ninety million, one hundred thirteen thousand, five hundred ninety-nine".