422313329 has 2 divisors, whose sum is σ = 422313330. Its totient is φ = 422313328.

The previous prime is 422313319. The next prime is 422313347. The reversal of 422313329 is 923313224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422220304 + 93025 = 20548^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 422313329 - 2²⁸ = 153877873 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 (422313319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211156664 + 211156665.

It is an arithmetic number, because the mean of its divisors is an integer number (211156665).

Almost surely, 2^422313329 is an apocalyptic number.

It is an amenable number.

422313329 is a deficient number, since it is larger than the sum of its proper divisors (1).

422313329 is an equidigital number, since it uses as much as digits as its factorization.

422313329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 29.

The square root of 422313329 is about 20550.2634776297. The cubic root of 422313329 is about 750.2596606100.

The spelling of 422313329 in words is "four hundred twenty-two million, three hundred thirteen thousand, three hundred twenty-nine".