422567 has 2 divisors, whose sum is σ = 422568. Its totient is φ = 422566.

The previous prime is 422563. The next prime is 422573. The reversal of 422567 is 765224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422567 - 2² = 422563 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211283 + 211284.

It is an arithmetic number, because the mean of its divisors is an integer number (211284).

2⁴²²⁵⁶⁷ is an apocalyptic number.

422567 is a deficient number, since it is larger than the sum of its proper divisors (1).

422567 is an equidigital number, since it uses as much as digits as its factorization.

422567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 26.

The square root of 422567 is about 650.0515364185. The cubic root of 422567 is about 75.0409850064.

It can be divided in two parts, 422 and 567, that added together give a palindrome (989).

The spelling of 422567 in words is "four hundred twenty-two thousand, five hundred sixty-seven".