8689363217 has 2 divisors, whose sum is σ = 8689363218. Its totient is φ = 8689363216.

The previous prime is 8689363183. The next prime is 8689363219. The reversal of 8689363217 is 7123639868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8434769281 + 254593936 = 91841^2 + 15956^2 .

It is a cyclic number.

It is not a de Polignac number, because 8689363217 - 2²⁰ = 8688314641 is a prime.

Together with 8689363219, 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 (8689363219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4344681608 + 4344681609.

It is an arithmetic number, because the mean of its divisors is an integer number (4344681609).

Almost surely, 2^8689363217 is an apocalyptic number.

It is an amenable number.

8689363217 is a deficient number, since it is larger than the sum of its proper divisors (1).

8689363217 is an equidigital number, since it uses as much as digits as its factorization.

8689363217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 53.

The square root of 8689363217 is about 93216.7539501350. The cubic root of 8689363217 is about 2055.8715836039.

The spelling of 8689363217 in words is "eight billion, six hundred eighty-nine million, three hundred sixty-three thousand, two hundred seventeen".