8345000809 has 2 divisors, whose sum is σ = 8345000810. Its totient is φ = 8345000808.

The previous prime is 8345000779. The next prime is 8345000861. The reversal of 8345000809 is 9080005438.

8345000809 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6367242025 + 1977758784 = 79795^2 + 44472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8345000809 is a prime.

It is not a weakly prime, because it can be changed into another prime (8345000899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4172500404 + 4172500405.

It is an arithmetic number, because the mean of its divisors is an integer number (4172500405).

Almost surely, 2^8345000809 is an apocalyptic number.

It is an amenable number.

8345000809 is a deficient number, since it is larger than the sum of its proper divisors (1).

8345000809 is an equidigital number, since it uses as much as digits as its factorization.

8345000809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 8345000809 is about 91350.9759608511. The cubic root of 8345000809 is about 2028.3464098674.

The spelling of 8345000809 in words is "eight billion, three hundred forty-five million, eight hundred nine", and thus it is an aban number.