422321507 has 2 divisors, whose sum is σ = 422321508. Its totient is φ = 422321506.

The previous prime is 422321491. The next prime is 422321563. The reversal of 422321507 is 705123224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422321507 - 2⁴ = 422321491 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (422321407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211160753 + 211160754.

It is an arithmetic number, because the mean of its divisors is an integer number (211160754).

Almost surely, 2^422321507 is an apocalyptic number.

422321507 is a deficient number, since it is larger than the sum of its proper divisors (1).

422321507 is an equidigital number, since it uses as much as digits as its factorization.

422321507 is an evil number, because the sum of its binary digits is even.

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

The square root of 422321507 is about 20550.4624522175. The cubic root of 422321507 is about 750.2645034470.

The spelling of 422321507 in words is "four hundred twenty-two million, three hundred twenty-one thousand, five hundred seven".