422004217 has 2 divisors, whose sum is σ = 422004218. Its totient is φ = 422004216.

The previous prime is 422004199. The next prime is 422004221. The reversal of 422004217 is 712400224.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 415996816 + 6007401 = 20396^2 + 2451^2 .

It is a cyclic number.

It is not a de Polignac number, because 422004217 - 2¹⁵ = 421971449 is a prime.

It is not a weakly prime, because it can be changed into another prime (422004227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211002108 + 211002109.

It is an arithmetic number, because the mean of its divisors is an integer number (211002109).

Almost surely, 2^422004217 is an apocalyptic number.

It is an amenable number.

422004217 is a deficient number, since it is larger than the sum of its proper divisors (1).

422004217 is an equidigital number, since it uses as much as digits as its factorization.

422004217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 422004217 is about 20542.7412240918. The cubic root of 422004217 is about 750.0765652205.

The spelling of 422004217 in words is "four hundred twenty-two million, four thousand, two hundred seventeen".