99579 has 8 divisors (see below), whose sum is σ = 139840. Its totient is φ = 62856.

The previous prime is 99577. The next prime is 99581. The reversal of 99579 is 97599.

It is an interprime number because it is at equal distance from previous prime (99577) and next prime (99581).

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

It is not a de Polignac number, because 99579 - 2¹ = 99577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 817 + ... + 930.

It is an arithmetic number, because the mean of its divisors is an integer number (17480).

2⁹⁹⁵⁷⁹ is an apocalyptic number.

99579 is a deficient number, since it is larger than the sum of its proper divisors (40261).

99579 is a wasteful number, since it uses less digits than its factorization.

99579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769.

The product of its digits is 25515, while the sum is 39.

The square root of 99579 is about 315.5614044841. The cubic root of 99579 is about 46.3506597496.

The spelling of 99579 in words is "ninety-nine thousand, five hundred seventy-nine".