79967497 has 2 divisors, whose sum is σ = 79967498. Its totient is φ = 79967496.

The previous prime is 79967441. The next prime is 79967549. The reversal of 79967497 is 79476997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75707401 + 4260096 = 8701^2 + 2064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79967497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79964497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39983748 + 39983749.

It is an arithmetic number, because the mean of its divisors is an integer number (39983749).

Almost surely, 2^79967497 is an apocalyptic number.

It is an amenable number.

79967497 is a deficient number, since it is larger than the sum of its proper divisors (1).

79967497 is an equidigital number, since it uses as much as digits as its factorization.

79967497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6001128, while the sum is 58.

The square root of 79967497 is about 8942.4547524715. The cubic root of 79967497 is about 430.8285754427.

The spelling of 79967497 in words is "seventy-nine million, nine hundred sixty-seven thousand, four hundred ninety-seven".