99791994 has 8 divisors (see below), whose sum is σ = 199584000. Its totient is φ = 33263996.

The previous prime is 99791983. The next prime is 99792037. The reversal of 99791994 is 49919799.

It is a sphenic number, since it is the product of 3 distinct primes.

99791994 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8315994 + ... + 8316005.

It is an arithmetic number, because the mean of its divisors is an integer number (24948000).

Almost surely, 2^99791994 is an apocalyptic number.

99791994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99791994 is a wasteful number, since it uses less digits than its factorization.

99791994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16632004.

The product of its digits is 1653372, while the sum is 57.

The square root of 99791994 is about 9989.5942860559. The cubic root of 99791994 is about 463.8368338549.

The spelling of 99791994 in words is "ninety-nine million, seven hundred ninety-one thousand, nine hundred ninety-four".