8668489 has 2 divisors, whose sum is σ = 8668490. Its totient is φ = 8668488.

The previous prime is 8668483. The next prime is 8668501. The reversal of 8668489 is 9848668.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7209225 + 1459264 = 2685^2 + 1208^2 .

It is a cyclic number.

It is not a de Polignac number, because 8668489 - 2¹³ = 8660297 is a prime.

It is not a weakly prime, because it can be changed into another prime (8668483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4334244 + 4334245.

It is an arithmetic number, because the mean of its divisors is an integer number (4334245).

Almost surely, 2^8668489 is an apocalyptic number.

It is an amenable number.

8668489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8668489 is an equidigital number, since it uses as much as digits as its factorization.

8668489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 49.

The square root of 8668489 is about 2944.2297804349. The cubic root of 8668489 is about 205.4224009104.

The spelling of 8668489 in words is "eight million, six hundred sixty-eight thousand, four hundred eighty-nine".