422651227 has 2 divisors, whose sum is σ = 422651228. Its totient is φ = 422651226.

The previous prime is 422651183. The next prime is 422651261. The reversal of 422651227 is 722156224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 422651227 - 2¹¹ = 422649179 is a prime.

It is not a weakly prime, because it can be changed into another prime (422651287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211325613 + 211325614.

It is an arithmetic number, because the mean of its divisors is an integer number (211325614).

Almost surely, 2^422651227 is an apocalyptic number.

422651227 is a deficient number, since it is larger than the sum of its proper divisors (1).

422651227 is an equidigital number, since it uses as much as digits as its factorization.

422651227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 422651227 is about 20558.4830909287. The cubic root of 422651227 is about 750.4597045418.

The spelling of 422651227 in words is "four hundred twenty-two million, six hundred fifty-one thousand, two hundred twenty-seven".