422217 has 12 divisors (see below), whose sum is σ = 624624. Its totient is φ = 274680.

The previous prime is 422209. The next prime is 422231. The reversal of 422217 is 712224.

It is not a de Polignac number, because 422217 - 2³ = 422209 is a prime.

422217 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 422217.

It is not an unprimeable number, because it can be changed into a prime (422267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159 + ... + 932.

It is an arithmetic number, because the mean of its divisors is an integer number (52052).

2⁴²²²¹⁷ is an apocalyptic number.

It is an amenable number.

422217 is a deficient number, since it is larger than the sum of its proper divisors (202407).

422217 is a wasteful number, since it uses less digits than its factorization.

422217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140 (or 1137 counting only the distinct ones).

The product of its digits is 224, while the sum is 18.

The square root of 422217 is about 649.7822712263. The cubic root of 422217 is about 75.0202611926.

The spelling of 422217 in words is "four hundred twenty-two thousand, two hundred seventeen", and thus it is an iban number.