99799800 has 96 divisors (see below), whose sum is σ = 316051200. Its totient is φ = 26039680.

The previous prime is 99799789. The next prime is 99799813. The reversal of 99799800 is 899799.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26431 + ... + 29969.

It is an arithmetic number, because the mean of its divisors is an integer number (3292200).

Almost surely, 2^99799800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99799800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158025600).

99799800 is an abundant number, since it is smaller than the sum of its proper divisors (216251400).

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

99799800 is a wasteful number, since it uses less digits than its factorization.

99799800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3605 (or 3596 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 51.

The square root of 99799800 is about 9989.9849849737. The cubic root of 99799800 is about 463.8489277306.

The spelling of 99799800 in words is "ninety-nine million, seven hundred ninety-nine thousand, eight hundred".