99902812 has 48 divisors (see below), whose sum is σ = 193626720. Its totient is φ = 44900352.

The previous prime is 99902809. The next prime is 99902813. The reversal of 99902812 is 21820999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99902813) 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, 148108 + ... + 148780.

It is an arithmetic number, because the mean of its divisors is an integer number (4033890).

Almost surely, 2^99902812 is an apocalyptic number.

It is an amenable number.

99902812 is a deficient number, since it is larger than the sum of its proper divisors (93723908).

99902812 is a wasteful number, since it uses less digits than its factorization.

99902812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 99902812 is about 9995.1394187375. The cubic root of 99902812 is about 464.0084657096.

The spelling of 99902812 in words is "ninety-nine million, nine hundred two thousand, eight hundred twelve".