99185912 has 16 divisors (see below), whose sum is σ = 212541360. Its totient is φ = 42508224.

The previous prime is 99185899. The next prime is 99185923. The reversal of 99185912 is 21958199.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 885533 + ... + 885644.

It is an arithmetic number, because the mean of its divisors is an integer number (13283835).

Almost surely, 2^99185912 is an apocalyptic number.

It is an amenable number.

99185912 is an abundant number, since it is smaller than the sum of its proper divisors (113355448).

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

99185912 is a wasteful number, since it uses less digits than its factorization.

99185912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771190 (or 1771186 counting only the distinct ones).

The product of its digits is 58320, while the sum is 44.

The square root of 99185912 is about 9959.2124186604. The cubic root of 99185912 is about 462.8958959359.

The spelling of 99185912 in words is "ninety-nine million, one hundred eighty-five thousand, nine hundred twelve".