99109911 has 16 divisors (see below), whose sum is σ = 135475200. Its totient is φ = 64427328.

The previous prime is 99109903. The next prime is 99109937. The reversal of 99109911 is 11990199.

It is not a de Polignac number, because 99109911 - 2³ = 99109903 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99109911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99104911) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 20275 + ... + 24683.

It is an arithmetic number, because the mean of its divisors is an integer number (8467200).

Almost surely, 2^99109911 is an apocalyptic number.

99109911 is a deficient number, since it is larger than the sum of its proper divisors (36365289).

99109911 is a wasteful number, since it uses less digits than its factorization.

99109911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4598.

The product of its (nonzero) digits is 6561, while the sum is 39.

The square root of 99109911 is about 9955.3960744915. The cubic root of 99109911 is about 462.7776347172. Note that the first 3 decimals are identical.

The spelling of 99109911 in words is "ninety-nine million, one hundred nine thousand, nine hundred eleven".