8716217 has 2 divisors, whose sum is σ = 8716218. Its totient is φ = 8716216.

The previous prime is 8716207. The next prime is 8716219. The reversal of 8716217 is 7126178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6295081 + 2421136 = 2509^2 + 1556^2 .

It is a cyclic number.

It is not a de Polignac number, because 8716217 - 2⁸ = 8715961 is a prime.

Together with 8716219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8716219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4358108 + 4358109.

It is an arithmetic number, because the mean of its divisors is an integer number (4358109).

Almost surely, 2^8716217 is an apocalyptic number.

It is an amenable number.

8716217 is a deficient number, since it is larger than the sum of its proper divisors (1).

8716217 is an equidigital number, since it uses as much as digits as its factorization.

8716217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 32.

The square root of 8716217 is about 2952.3239998347. The cubic root of 8716217 is about 205.7987241317.

The spelling of 8716217 in words is "eight million, seven hundred sixteen thousand, two hundred seventeen".