422564323 has 2 divisors, whose sum is σ = 422564324. Its totient is φ = 422564322.

The previous prime is 422564321. The next prime is 422564347. The reversal of 422564323 is 323465224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422564323 - 2¹ = 422564321 is a prime.

Together with 422564321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (422564321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211282161 + 211282162.

It is an arithmetic number, because the mean of its divisors is an integer number (211282162).

Almost surely, 2^422564323 is an apocalyptic number.

422564323 is a deficient number, since it is larger than the sum of its proper divisors (1).

422564323 is an equidigital number, since it uses as much as digits as its factorization.

422564323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 31.

The square root of 422564323 is about 20556.3694022072. The cubic root of 422564323 is about 750.4082654225.

Subtracting from 422564323 its reverse (323465224), we obtain a palindrome (99099099).

The spelling of 422564323 in words is "four hundred twenty-two million, five hundred sixty-four thousand, three hundred twenty-three".