99902808 has 80 divisors (see below), whose sum is σ = 281949360. Its totient is φ = 33048000.

The previous prime is 99902771. The next prime is 99902809. The reversal of 99902808 is 80820999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99902809) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97338 + ... + 98358.

It is an arithmetic number, because the mean of its divisors is an integer number (3524367).

Almost surely, 2^99902808 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 99902808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140974680).

99902808 is an abundant number, since it is smaller than the sum of its proper divisors (182046552).

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

99902808 is a wasteful number, since it uses less digits than its factorization.

99902808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190 (or 1177 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 99902808 is about 9995.1392186402. The cubic root of 99902808 is about 464.0084595168.

The spelling of 99902808 in words is "ninety-nine million, nine hundred two thousand, eight hundred eight".