79917413 has 2 divisors, whose sum is σ = 79917414. Its totient is φ = 79917412.

The previous prime is 79917379. The next prime is 79917451. The reversal of 79917413 is 31471997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76702564 + 3214849 = 8758^2 + 1793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79917413 is a prime.

It is a super-2 number, since 2×79917413² = 12773585801225138, which contains 22 as substring.

It is equal to p_4664876 and since 79917413 and 4664876 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 (79917613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39958706 + 39958707.

It is an arithmetic number, because the mean of its divisors is an integer number (39958707).

Almost surely, 2^79917413 is an apocalyptic number.

It is an amenable number.

79917413 is a deficient number, since it is larger than the sum of its proper divisors (1).

79917413 is an equidigital number, since it uses as much as digits as its factorization.

79917413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 41.

The square root of 79917413 is about 8939.6539642203. The cubic root of 79917413 is about 430.7386133728.

The spelling of 79917413 in words is "seventy-nine million, nine hundred seventeen thousand, four hundred thirteen".