8666449339 has 2 divisors, whose sum is σ = 8666449340. Its totient is φ = 8666449338.

The previous prime is 8666449331. The next prime is 8666449343. The reversal of 8666449339 is 9339446668.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8666449339 - 2³ = 8666449331 is a prime.

It is not a weakly prime, because it can be changed into another prime (8666449331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4333224669 + 4333224670.

It is an arithmetic number, because the mean of its divisors is an integer number (4333224670).

Almost surely, 2^8666449339 is an apocalyptic number.

8666449339 is a deficient number, since it is larger than the sum of its proper divisors (1).

8666449339 is an equidigital number, since it uses as much as digits as its factorization.

8666449339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20155392, while the sum is 58.

The square root of 8666449339 is about 93093.7663809989. The cubic root of 8666449339 is about 2054.0628795514.

The spelling of 8666449339 in words is "eight billion, six hundred sixty-six million, four hundred forty-nine thousand, three hundred thirty-nine".