79727413 has 2 divisors, whose sum is σ = 79727414. Its totient is φ = 79727412.

The previous prime is 79727377. The next prime is 79727419. The reversal of 79727413 is 31472797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65642404 + 14085009 = 8102^2 + 3753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79727413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79727419) 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 as a sum of consecutive naturals, namely, 39863706 + 39863707.

It is an arithmetic number, because the mean of its divisors is an integer number (39863707).

Almost surely, 2^79727413 is an apocalyptic number.

It is an amenable number.

79727413 is a deficient number, since it is larger than the sum of its proper divisors (1).

79727413 is an equidigital number, since it uses as much as digits as its factorization.

79727413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74088, while the sum is 40.

The square root of 79727413 is about 8929.0208309758. The cubic root of 79727413 is about 430.3969887027.

The spelling of 79727413 in words is "seventy-nine million, seven hundred twenty-seven thousand, four hundred thirteen".