8313813947 has 2 divisors, whose sum is σ = 8313813948. Its totient is φ = 8313813946.

The previous prime is 8313813899. The next prime is 8313813997. The reversal of 8313813947 is 7493183138.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8313813947 - 2²⁴ = 8297036731 is a prime.

It is not a weakly prime, because it can be changed into another prime (8313813997) 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, 4156906973 + 4156906974.

It is an arithmetic number, because the mean of its divisors is an integer number (4156906974).

Almost surely, 2^8313813947 is an apocalyptic number.

8313813947 is a deficient number, since it is larger than the sum of its proper divisors (1).

8313813947 is an equidigital number, since it uses as much as digits as its factorization.

8313813947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 8313813947 is about 91180.1181563174. The cubic root of 8313813947 is about 2025.8164829825.

The spelling of 8313813947 in words is "eight billion, three hundred thirteen million, eight hundred thirteen thousand, nine hundred forty-seven".