99679798 has 8 divisors (see below), whose sum is σ = 149686560. Its totient is φ = 49784280.

The previous prime is 99679759. The next prime is 99679831. The reversal of 99679798 is 89797699.

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

It is a congruent number.

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, 25533 + ... + 29176.

It is an arithmetic number, because the mean of its divisors is an integer number (18710820).

Almost surely, 2^99679798 is an apocalyptic number.

99679798 is a deficient number, since it is larger than the sum of its proper divisors (50006762).

99679798 is a wasteful number, since it uses less digits than its factorization.

99679798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55622.

The product of its digits is 15431472, while the sum is 64.

The square root of 99679798 is about 9983.9770632749. The cubic root of 99679798 is about 463.6629382994.

The spelling of 99679798 in words is "ninety-nine million, six hundred seventy-nine thousand, seven hundred ninety-eight".