99921882 has 16 divisors (see below), whose sum is σ = 200280960. Its totient is φ = 33234432.

The previous prime is 99921881. The next prime is 99921883. The reversal of 99921882 is 28812999.

It is an interprime number because it is at equal distance from previous prime (99921881) and next prime (99921883).

It is not an unprimeable number, because it can be changed into a prime (99921881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15207 + ... + 20762.

It is an arithmetic number, because the mean of its divisors is an integer number (12517560).

Almost surely, 2^99921882 is an apocalyptic number.

99921882 is an abundant number, since it is smaller than the sum of its proper divisors (100359078).

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

99921882 is a wasteful number, since it uses less digits than its factorization.

99921882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36437.

The product of its digits is 186624, while the sum is 48.

The square root of 99921882 is about 9996.0933368992. The cubic root of 99921882 is about 464.0379879966.

The spelling of 99921882 in words is "ninety-nine million, nine hundred twenty-one thousand, eight hundred eighty-two".