79013 has 6 divisors (see below), whose sum is σ = 86982. Its totient is φ = 71720.

The previous prime is 78989. The next prime is 79031. The reversal of 79013 is 31097.

It can be written as a sum of positive squares in only one way, i.e., 58564 + 20449 = 242^2 + 143^2 .

It is not a de Polignac number, because 79013 - 2¹⁶ = 13477 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206 + ... + 447.

It is an arithmetic number, because the mean of its divisors is an integer number (14497).

2⁷⁹⁰¹³ is an apocalyptic number.

It is an amenable number.

79013 is a deficient number, since it is larger than the sum of its proper divisors (7969).

79013 is a wasteful number, since it uses less digits than its factorization.

79013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 79013 is about 281.0925114620. The cubic root of 79013 is about 42.9107577667.

The spelling of 79013 in words is "seventy-nine thousand, thirteen".