76866017 has 2 divisors, whose sum is σ = 76866018. Its totient is φ = 76866016.

The previous prime is 76865941. The next prime is 76866043. The reversal of 76866017 is 71066867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71301136 + 5564881 = 8444^2 + 2359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76866017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76866817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38433008 + 38433009.

It is an arithmetic number, because the mean of its divisors is an integer number (38433009).

Almost surely, 2^76866017 is an apocalyptic number.

It is an amenable number.

76866017 is a deficient number, since it is larger than the sum of its proper divisors (1).

76866017 is an equidigital number, since it uses as much as digits as its factorization.

76866017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 76866017 is about 8767.3266735077. The cubic root of 76866017 is about 425.1851871160.

The spelling of 76866017 in words is "seventy-six million, eight hundred sixty-six thousand, seventeen".