8366222593 has 2 divisors, whose sum is σ = 8366222594. Its totient is φ = 8366222592.

The previous prime is 8366222573. The next prime is 8366222617. The reversal of 8366222593 is 3952226638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6631333489 + 1734889104 = 81433^2 + 41652^2 .

It is a cyclic number.

It is not a de Polignac number, because 8366222593 - 2²⁵ = 8332668161 is a prime.

It is not a weakly prime, because it can be changed into another prime (8366222503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4183111296 + 4183111297.

It is an arithmetic number, because the mean of its divisors is an integer number (4183111297).

Almost surely, 2^8366222593 is an apocalyptic number.

It is an amenable number.

8366222593 is a deficient number, since it is larger than the sum of its proper divisors (1).

8366222593 is an equidigital number, since it uses as much as digits as its factorization.

8366222593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 46.

The square root of 8366222593 is about 91467.0574195978. The cubic root of 8366222593 is about 2030.0643522677.

The spelling of 8366222593 in words is "eight billion, three hundred sixty-six million, two hundred twenty-two thousand, five hundred ninety-three".