422634571 has 2 divisors, whose sum is σ = 422634572. Its totient is φ = 422634570.

The previous prime is 422634559. The next prime is 422634587. The reversal of 422634571 is 175436224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422634571 - 2²¹ = 420537419 is a prime.

It is not a weakly prime, because it can be changed into another prime (422634551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211317285 + 211317286.

It is an arithmetic number, because the mean of its divisors is an integer number (211317286).

Almost surely, 2^422634571 is an apocalyptic number.

422634571 is a deficient number, since it is larger than the sum of its proper divisors (1).

422634571 is an equidigital number, since it uses as much as digits as its factorization.

422634571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 34.

The square root of 422634571 is about 20558.0779986846. The cubic root of 422634571 is about 750.4498462786.

The spelling of 422634571 in words is "four hundred twenty-two million, six hundred thirty-four thousand, five hundred seventy-one".