99885898 has 32 divisors (see below), whose sum is σ = 174710016. Its totient is φ = 41948928.

The previous prime is 99885893. The next prime is 99885917. The reversal of 99885898 is 89858899.

It is not an unprimeable number, because it can be changed into a prime (99885893) 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, 162640 + ... + 163252.

It is an arithmetic number, because the mean of its divisors is an integer number (5459688).

Almost surely, 2^99885898 is an apocalyptic number.

99885898 is a deficient number, since it is larger than the sum of its proper divisors (74824118).

99885898 is a wasteful number, since it uses less digits than its factorization.

99885898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838.

The product of its digits is 14929920, while the sum is 64.

The square root of 99885898 is about 9994.2932716626. The cubic root of 99885898 is about 463.9822779844.

The spelling of 99885898 in words is "ninety-nine million, eight hundred eighty-five thousand, eight hundred ninety-eight".