99901892 has 12 divisors (see below), whose sum is σ = 175151760. Its totient is φ = 49858536.

The previous prime is 99901889. The next prime is 99901909. The reversal of 99901892 is 29810999.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20642 + ... + 25017.

It is an arithmetic number, because the mean of its divisors is an integer number (14595980).

Almost surely, 2^99901892 is an apocalyptic number.

It is an amenable number.

99901892 is a deficient number, since it is larger than the sum of its proper divisors (75249868).

99901892 is a wasteful number, since it uses less digits than its factorization.

99901892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46210 (or 46208 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 47.

The square root of 99901892 is about 9995.0933962620. The cubic root of 99901892 is about 464.0070413616.

The spelling of 99901892 in words is "ninety-nine million, nine hundred one thousand, eight hundred ninety-two".