422059991 has 2 divisors, whose sum is σ = 422059992. Its totient is φ = 422059990.

The previous prime is 422059987. The next prime is 422060029. The reversal of 422059991 is 199950224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422059991 - 2² = 422059987 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422050991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211029995 + 211029996.

It is an arithmetic number, because the mean of its divisors is an integer number (211029996).

Almost surely, 2^422059991 is an apocalyptic number.

422059991 is a deficient number, since it is larger than the sum of its proper divisors (1).

422059991 is an equidigital number, since it uses as much as digits as its factorization.

422059991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 422059991 is about 20544.0986903782. The cubic root of 422059991 is about 750.1096082769.

The spelling of 422059991 in words is "four hundred twenty-two million, fifty-nine thousand, nine hundred ninety-one".