422328923 has 2 divisors, whose sum is σ = 422328924. Its totient is φ = 422328922.

The previous prime is 422328917. The next prime is 422328947. The reversal of 422328923 is 329823224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422328923 - 2⁶ = 422328859 is a prime.

It is not a weakly prime, because it can be changed into another prime (422328913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211164461 + 211164462.

It is an arithmetic number, because the mean of its divisors is an integer number (211164462).

Almost surely, 2^422328923 is an apocalyptic number.

422328923 is a deficient number, since it is larger than the sum of its proper divisors (1).

422328923 is an equidigital number, since it uses as much as digits as its factorization.

422328923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 422328923 is about 20550.6428853211. The cubic root of 422328923 is about 750.2688949899.

The spelling of 422328923 in words is "four hundred twenty-two million, three hundred twenty-eight thousand, nine hundred twenty-three".