8005317239 has 2 divisors, whose sum is σ = 8005317240. Its totient is φ = 8005317238.

The previous prime is 8005317169. The next prime is 8005317247. The reversal of 8005317239 is 9327135008.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8005317239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8005317259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4002658619 + 4002658620.

It is an arithmetic number, because the mean of its divisors is an integer number (4002658620).

Almost surely, 2^8005317239 is an apocalyptic number.

8005317239 is a deficient number, since it is larger than the sum of its proper divisors (1).

8005317239 is an equidigital number, since it uses as much as digits as its factorization.

8005317239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 8005317239 is about 89472.4384321787. The cubic root of 8005317239 is about 2000.4430051160.

The spelling of 8005317239 in words is "eight billion, five million, three hundred seventeen thousand, two hundred thirty-nine".