99479 has 4 divisors (see below), whose sum is σ = 102720. Its totient is φ = 96240.

The previous prime is 99469. The next prime is 99487. The reversal of 99479 is 97499.

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 99479 - 2⁸ = 99223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 99479.

It is not an unprimeable number, because it can be changed into a prime (99409) 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, 1574 + ... + 1635.

It is an arithmetic number, because the mean of its divisors is an integer number (25680).

2⁹⁹⁴⁷⁹ is an apocalyptic number.

99479 is a deficient number, since it is larger than the sum of its proper divisors (3241).

99479 is a wasteful number, since it uses less digits than its factorization.

99479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240.

The product of its digits is 20412, while the sum is 38.

The square root of 99479 is about 315.4029169174. The cubic root of 99479 is about 46.3351390126.

The spelling of 99479 in words is "ninety-nine thousand, four hundred seventy-nine".