8309422073 has 2 divisors, whose sum is σ = 8309422074. Its totient is φ = 8309422072.

The previous prime is 8309422049. The next prime is 8309422109. The reversal of 8309422073 is 3702249038.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8305041424 + 4380649 = 91132^2 + 2093^2 .

It is a cyclic number.

It is not a de Polignac number, because 8309422073 - 2⁸ = 8309421817 is a prime.

It is not a weakly prime, because it can be changed into another prime (8309422573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4154711036 + 4154711037.

It is an arithmetic number, because the mean of its divisors is an integer number (4154711037).

Almost surely, 2^8309422073 is an apocalyptic number.

It is an amenable number.

8309422073 is a deficient number, since it is larger than the sum of its proper divisors (1).

8309422073 is an equidigital number, since it uses as much as digits as its factorization.

8309422073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 8309422073 is about 91156.0314680274. The cubic root of 8309422073 is about 2025.4596993639.

The spelling of 8309422073 in words is "eight billion, three hundred nine million, four hundred twenty-two thousand, seventy-three".