79680163 has 2 divisors, whose sum is σ = 79680164. Its totient is φ = 79680162.

The previous prime is 79680151. The next prime is 79680191. The reversal of 79680163 is 36108697.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79680163 - 2⁹ = 79679651 is a prime.

It is not a weakly prime, because it can be changed into another prime (79680113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39840081 + 39840082.

It is an arithmetic number, because the mean of its divisors is an integer number (39840082).

Almost surely, 2^79680163 is an apocalyptic number.

79680163 is a deficient number, since it is larger than the sum of its proper divisors (1).

79680163 is an equidigital number, since it uses as much as digits as its factorization.

79680163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 79680163 is about 8926.3745720197. The cubic root of 79680163 is about 430.3119477878.

The spelling of 79680163 in words is "seventy-nine million, six hundred eighty thousand, one hundred sixty-three".