8320970249 has 2 divisors, whose sum is σ = 8320970250. Its totient is φ = 8320970248.

The previous prime is 8320970237. The next prime is 8320970299. The reversal of 8320970249 is 9420790238.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7685678224 + 635292025 = 87668^2 + 25205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8320970249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8320970299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4160485124 + 4160485125.

It is an arithmetic number, because the mean of its divisors is an integer number (4160485125).

Almost surely, 2^8320970249 is an apocalyptic number.

It is an amenable number.

8320970249 is a deficient number, since it is larger than the sum of its proper divisors (1).

8320970249 is an equidigital number, since it uses as much as digits as its factorization.

8320970249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 8320970249 is about 91219.3523820467. The cubic root of 8320970249 is about 2026.3975719584.

The spelling of 8320970249 in words is "eight billion, three hundred twenty million, nine hundred seventy thousand, two hundred forty-nine".