99814579 has 4 divisors (see below), whose sum is σ = 101181976. Its totient is φ = 98447184.

The previous prime is 99814573. The next prime is 99814591. The reversal of 99814579 is 97541899.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99814579 - 2³ = 99814571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99814571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683589 + ... + 683734.

It is an arithmetic number, because the mean of its divisors is an integer number (25295494).

Almost surely, 2^99814579 is an apocalyptic number.

99814579 is a deficient number, since it is larger than the sum of its proper divisors (1367397).

99814579 is a wasteful number, since it uses less digits than its factorization.

99814579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367396.

The product of its digits is 816480, while the sum is 52.

The square root of 99814579 is about 9990.7246483926. The cubic root of 99814579 is about 463.8718231838.

The spelling of 99814579 in words is "ninety-nine million, eight hundred fourteen thousand, five hundred seventy-nine".