79099 has 4 divisors (see below), whose sum is σ = 80136. Its totient is φ = 78064.

The previous prime is 79087. The next prime is 79103. The reversal of 79099 is 99097.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99097 = 41 ⋅2417.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79099 is a prime.

It is a Duffinian number.

79099 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (79039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394 + ... + 559.

It is an arithmetic number, because the mean of its divisors is an integer number (20034).

2⁷⁹⁰⁹⁹ is an apocalyptic number.

79099 is a deficient number, since it is larger than the sum of its proper divisors (1037).

79099 is an equidigital number, since it uses as much as digits as its factorization.

79099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036.

The product of its (nonzero) digits is 5103, while the sum is 34.

The square root of 79099 is about 281.2454444075. The cubic root of 79099 is about 42.9263205521.

It can be divided in two parts, 790 and 99, that multiplied together give a triangular number (78210 = T₃₉₅).

The spelling of 79099 in words is "seventy-nine thousand, ninety-nine".