99888798 has 32 divisors (see below), whose sum is σ = 203046912. Its totient is φ = 32756000.

The previous prime is 99888791. The next prime is 99888809. The reversal of 99888798 is 89788899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99888791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115315 + ... + 116177.

It is an arithmetic number, because the mean of its divisors is an integer number (6345216).

Almost surely, 2^99888798 is an apocalyptic number.

99888798 is an abundant number, since it is smaller than the sum of its proper divisors (103158114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99888798 is a wasteful number, since it uses less digits than its factorization.

99888798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160.

The product of its digits is 20901888, while the sum is 66.

The square root of 99888798 is about 9994.4383534044. The cubic root of 99888798 is about 463.9867682265.

The spelling of 99888798 in words is "ninety-nine million, eight hundred eighty-eight thousand, seven hundred ninety-eight".