99189108 has 36 divisors (see below), whose sum is σ = 251318340. Its totient is φ = 32985216.

The previous prime is 99189073. The next prime is 99189113. The reversal of 99189108 is 80198199.

It can be written as a sum of positive squares in 2 ways, for example, as 89529444 + 9659664 = 9462^2 + 3108^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13438 + ... + 19466.

It is an arithmetic number, because the mean of its divisors is an integer number (6981065).

Almost surely, 2^99189108 is an apocalyptic number.

It is an amenable number.

99189108 is an abundant number, since it is smaller than the sum of its proper divisors (152129232).

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

99189108 is a wasteful number, since it uses less digits than its factorization.

99189108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6496 (or 6491 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 45.

The square root of 99189108 is about 9959.3728718228. The cubic root of 99189108 is about 462.9008677421.

The spelling of 99189108 in words is "ninety-nine million, one hundred eighty-nine thousand, one hundred eight".