8108689 has 2 divisors, whose sum is σ = 8108690. Its totient is φ = 8108688.

The previous prime is 8108671. The next prime is 8108699. The reversal of 8108689 is 9868018.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5721664 + 2387025 = 2392^2 + 1545^2 .

It is a cyclic number.

It is not a de Polignac number, because 8108689 - 2⁵ = 8108657 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8108699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4054344 + 4054345.

It is an arithmetic number, because the mean of its divisors is an integer number (4054345).

Almost surely, 2^8108689 is an apocalyptic number.

It is an amenable number.

8108689 is a deficient number, since it is larger than the sum of its proper divisors (1).

8108689 is an equidigital number, since it uses as much as digits as its factorization.

8108689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 8108689 is about 2847.5759866946. The cubic root of 8108689 is about 200.9016705092.

The spelling of 8108689 in words is "eight million, one hundred eight thousand, six hundred eighty-nine".