99109628 has 24 divisors (see below), whose sum is σ = 180603024. Its totient is φ = 47548800.

The previous prime is 99109613. The next prime is 99109639. The reversal of 99109628 is 82690199.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5051 + ... + 14957.

It is an arithmetic number, because the mean of its divisors is an integer number (7525126).

Almost surely, 2^99109628 is an apocalyptic number.

It is an amenable number.

99109628 is a deficient number, since it is larger than the sum of its proper divisors (81493396).

99109628 is a wasteful number, since it uses less digits than its factorization.

99109628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10013 (or 10011 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 99109628 is about 9955.3818610840. The cubic root of 99109628 is about 462.7771942426. Note that the first 3 decimals are identical.

The spelling of 99109628 in words is "ninety-nine million, one hundred nine thousand, six hundred twenty-eight".