79906297 has 2 divisors, whose sum is σ = 79906298. Its totient is φ = 79906296.

The previous prime is 79906283. The next prime is 79906319. The reversal of 79906297 is 79260997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79905721 + 576 = 8939^2 + 24^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79906297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79906297.

It is not a weakly prime, because it can be changed into another prime (79906207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39953148 + 39953149.

It is an arithmetic number, because the mean of its divisors is an integer number (39953149).

Almost surely, 2^79906297 is an apocalyptic number.

It is an amenable number.

79906297 is a deficient number, since it is larger than the sum of its proper divisors (1).

79906297 is an equidigital number, since it uses as much as digits as its factorization.

79906297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 79906297 is about 8939.0322183109. The cubic root of 79906297 is about 430.7186414532.

The spelling of 79906297 in words is "seventy-nine million, nine hundred six thousand, two hundred ninety-seven".