79933013 has 2 divisors, whose sum is σ = 79933014. Its totient is φ = 79933012.

The previous prime is 79932991. The next prime is 79933033. The reversal of 79933013 is 31033997.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51811204 + 28121809 = 7198^2 + 5303^2 .

It is an emirp because it is prime and its reverse (31033997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79933013 - 2⁶ = 79932949 is a prime.

It is equal to p_4665716 and since 79933013 and 4665716 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79933033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39966506 + 39966507.

It is an arithmetic number, because the mean of its divisors is an integer number (39966507).

Almost surely, 2^79933013 is an apocalyptic number.

It is an amenable number.

79933013 is a deficient number, since it is larger than the sum of its proper divisors (1).

79933013 is an equidigital number, since it uses as much as digits as its factorization.

79933013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15309, while the sum is 35.

The square root of 79933013 is about 8940.5264386388. The cubic root of 79933013 is about 430.7666384925.

The spelling of 79933013 in words is "seventy-nine million, nine hundred thirty-three thousand, thirteen".