79851713 has 2 divisors, whose sum is σ = 79851714. Its totient is φ = 79851712.

The previous prime is 79851701. The next prime is 79851719. The reversal of 79851713 is 31715897.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60341824 + 19509889 = 7768^2 + 4417^2 .

It is a cyclic number.

It is not a de Polignac number, because 79851713 - 2⁴ = 79851697 is a prime.

It is not a weakly prime, because it can be changed into another prime (79851719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39925856 + 39925857.

It is an arithmetic number, because the mean of its divisors is an integer number (39925857).

Almost surely, 2^79851713 is an apocalyptic number.

It is an amenable number.

79851713 is a deficient number, since it is larger than the sum of its proper divisors (1).

79851713 is an equidigital number, since it uses as much as digits as its factorization.

79851713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 41.

The square root of 79851713 is about 8935.9785698042. The cubic root of 79851713 is about 430.6205444632.

The spelling of 79851713 in words is "seventy-nine million, eight hundred fifty-one thousand, seven hundred thirteen".