79866767 has 2 divisors, whose sum is σ = 79866768. Its totient is φ = 79866766.

The previous prime is 79866749. The next prime is 79866779. The reversal of 79866767 is 76766897.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79866767 - 2²⁰ = 78818191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79866067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39933383 + 39933384.

It is an arithmetic number, because the mean of its divisors is an integer number (39933384).

Almost surely, 2^79866767 is an apocalyptic number.

79866767 is a deficient number, since it is larger than the sum of its proper divisors (1).

79866767 is an equidigital number, since it uses as much as digits as its factorization.

79866767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5334336, while the sum is 56.

The square root of 79866767 is about 8936.8208553154. The cubic root of 79866767 is about 430.6476035961.

The spelling of 79866767 in words is "seventy-nine million, eight hundred sixty-six thousand, seven hundred sixty-seven".