422662291 has 2 divisors, whose sum is σ = 422662292. Its totient is φ = 422662290.

The previous prime is 422662267. The next prime is 422662337. The reversal of 422662291 is 192266224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422662291 - 2⁵ = 422662259 is a prime.

It is not a weakly prime, because it can be changed into another prime (422662231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211331145 + 211331146.

It is an arithmetic number, because the mean of its divisors is an integer number (211331146).

Almost surely, 2^422662291 is an apocalyptic number.

422662291 is a deficient number, since it is larger than the sum of its proper divisors (1).

422662291 is an equidigital number, since it uses as much as digits as its factorization.

422662291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The square root of 422662291 is about 20558.7521751686. The cubic root of 422662291 is about 750.4662528991.

The spelling of 422662291 in words is "four hundred twenty-two million, six hundred sixty-two thousand, two hundred ninety-one".