99790458 has 8 divisors (see below), whose sum is σ = 199580928. Its totient is φ = 33263484.

The previous prime is 99790441. The next prime is 99790469. The reversal of 99790458 is 85409799.

It is a happy number.

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

99790458 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 99790458.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8315866 + ... + 8315877.

It is an arithmetic number, because the mean of its divisors is an integer number (24947616).

Almost surely, 2^99790458 is an apocalyptic number.

99790458 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.

99790458 is a wasteful number, since it uses less digits than its factorization.

99790458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16631748.

The product of its (nonzero) digits is 816480, while the sum is 51.

The square root of 99790458 is about 9989.5174057609. The cubic root of 99790458 is about 463.8344540480.

The spelling of 99790458 in words is "ninety-nine million, seven hundred ninety thousand, four hundred fifty-eight".