99109910 has 32 divisors (see below), whose sum is σ = 182345472. Its totient is φ = 38776320.

The previous prime is 99109903. The next prime is 99109937. The reversal of 99109910 is 1990199.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99515 + ... + 100505.

It is an arithmetic number, because the mean of its divisors is an integer number (5698296).

Almost surely, 2^99109910 is an apocalyptic number.

99109910 is a deficient number, since it is larger than the sum of its proper divisors (83235562).

99109910 is a wasteful number, since it uses less digits than its factorization.

99109910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208.

The product of its (nonzero) digits is 6561, while the sum is 38.

The square root of 99109910 is about 9955.3960242674. The cubic root of 99109910 is about 462.7776331607. Note that the first 3 decimals are identical.

The spelling of 99109910 in words is "ninety-nine million, one hundred nine thousand, nine hundred ten".