79313797 has 2 divisors, whose sum is σ = 79313798. Its totient is φ = 79313796.

The previous prime is 79313791. The next prime is 79313813. The reversal of 79313797 is 79731397.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61999876 + 17313921 = 7874^2 + 4161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79313797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79313791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39656898 + 39656899.

It is an arithmetic number, because the mean of its divisors is an integer number (39656899).

Almost surely, 2^79313797 is an apocalyptic number.

It is an amenable number.

79313797 is a deficient number, since it is larger than the sum of its proper divisors (1).

79313797 is an equidigital number, since it uses as much as digits as its factorization.

79313797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 250047, while the sum is 46.

The square root of 79313797 is about 8905.8293830502. The cubic root of 79313797 is about 429.6514157079.

The spelling of 79313797 in words is "seventy-nine million, three hundred thirteen thousand, seven hundred ninety-seven".