79086013 has 2 divisors, whose sum is σ = 79086014. Its totient is φ = 79086012.

The previous prime is 79085957. The next prime is 79086041. The reversal of 79086013 is 31068097.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78198649 + 887364 = 8843^2 + 942^2 .

It is a cyclic number.

It is not a de Polignac number, because 79086013 - 2¹³ = 79077821 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79086013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79086043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39543006 + 39543007.

It is an arithmetic number, because the mean of its divisors is an integer number (39543007).

Almost surely, 2^79086013 is an apocalyptic number.

It is an amenable number.

79086013 is a deficient number, since it is larger than the sum of its proper divisors (1).

79086013 is an equidigital number, since it uses as much as digits as its factorization.

79086013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 79086013 is about 8893.0317102774. The cubic root of 79086013 is about 429.2397111393.

The spelling of 79086013 in words is "seventy-nine million, eighty-six thousand, thirteen".