79227697 has 2 divisors, whose sum is σ = 79227698. Its totient is φ = 79227696.

The previous prime is 79227691. The next prime is 79227749. The reversal of 79227697 is 79672297.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60357361 + 18870336 = 7769^2 + 4344^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79227697 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79227697.

It is not a weakly prime, because it can be changed into another prime (79227691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39613848 + 39613849.

It is an arithmetic number, because the mean of its divisors is an integer number (39613849).

Almost surely, 2^79227697 is an apocalyptic number.

It is an amenable number.

79227697 is a deficient number, since it is larger than the sum of its proper divisors (1).

79227697 is an equidigital number, since it uses as much as digits as its factorization.

79227697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 666792, while the sum is 49.

The square root of 79227697 is about 8900.9941579579. The cubic root of 79227697 is about 429.4958884124.

The spelling of 79227697 in words is "seventy-nine million, two hundred twenty-seven thousand, six hundred ninety-seven".