99746979 has 16 divisors (see below), whose sum is σ = 144825600. Its totient is φ = 60824736.

The previous prime is 99746963. The next prime is 99746989. The reversal of 99746979 is 97964799.

It is not a de Polignac number, because 99746979 - 2⁴ = 99746963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99746909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28519 + ... + 31824.

It is an arithmetic number, because the mean of its divisors is an integer number (9051600).

Almost surely, 2^99746979 is an apocalyptic number.

99746979 is a deficient number, since it is larger than the sum of its proper divisors (45078621).

99746979 is a wasteful number, since it uses less digits than its factorization.

99746979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60394.

The product of its digits is 7715736, while the sum is 60.

The square root of 99746979 is about 9987.3409374067. The cubic root of 99746979 is about 463.7670795772.

The spelling of 99746979 in words is "ninety-nine million, seven hundred forty-six thousand, nine hundred seventy-nine".