8668390727 has 2 divisors, whose sum is σ = 8668390728. Its totient is φ = 8668390726.

The previous prime is 8668390721. The next prime is 8668390733. The reversal of 8668390727 is 7270938668.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (8668390721) and next prime (8668390733).

It is a cyclic number.

It is not a de Polignac number, because 8668390727 - 2¹⁸ = 8668128583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8668390721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4334195363 + 4334195364.

It is an arithmetic number, because the mean of its divisors is an integer number (4334195364).

Almost surely, 2^8668390727 is an apocalyptic number.

8668390727 is a deficient number, since it is larger than the sum of its proper divisors (1).

8668390727 is an equidigital number, since it uses as much as digits as its factorization.

8668390727 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 56.

The square root of 8668390727 is about 93104.1928540278. The cubic root of 8668390727 is about 2054.2162462933.

The spelling of 8668390727 in words is "eight billion, six hundred sixty-eight million, three hundred ninety thousand, seven hundred twenty-seven".