108899999 has 16 divisors (see below), whose sum is σ = 119992320. Its totient is φ = 98223840.

The previous prime is 108899983. The next prime is 108900007. The reversal of 108899999 is 999998801.

It is not a de Polignac number, because 108899999 - 2⁴ = 108899983 is a prime.

It is a Duffinian number.

108899999 is a modest number, since divided by 99999 gives 1088 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108899939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109394 + ... + 110384.

It is an arithmetic number, because the mean of its divisors is an integer number (7499520).

Almost surely, 2^108899999 is an apocalyptic number.

108899999 is a deficient number, since it is larger than the sum of its proper divisors (11092321).

108899999 is a wasteful number, since it uses less digits than its factorization.

108899999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190.

The product of its (nonzero) digits is 3779136, while the sum is 62.

The square root of 108899999 is about 10435.5162306424. The cubic root of 108899999 is about 477.5394907171.

The spelling of 108899999 in words is "one hundred eight million, eight hundred ninety-nine thousand, nine hundred ninety-nine".