99123698 has 16 divisors (see below), whose sum is σ = 156663936. Its totient is φ = 46944480.

The previous prime is 99123683. The next prime is 99123733. The reversal of 99123698 is 89632199.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 5723 + ... + 15198.

It is an arithmetic number, because the mean of its divisors is an integer number (9791496).

Almost surely, 2^99123698 is an apocalyptic number.

99123698 is a deficient number, since it is larger than the sum of its proper divisors (57540238).

99123698 is a wasteful number, since it uses less digits than its factorization.

99123698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21049.

The product of its digits is 209952, while the sum is 47.

The square root of 99123698 is about 9956.0884889599. The cubic root of 99123698 is about 462.7990924414.

The spelling of 99123698 in words is "ninety-nine million, one hundred twenty-three thousand, six hundred ninety-eight".