422321 has 2 divisors, whose sum is σ = 422322. Its totient is φ = 422320.

The previous prime is 422311. The next prime is 422339. The reversal of 422321 is 123224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215296 + 207025 = 464^2 + 455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422321 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 422296 and 422305.

It is not a weakly prime, because it can be changed into another prime (422311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211160 + 211161.

It is an arithmetic number, because the mean of its divisors is an integer number (211161).

2⁴²²³²¹ is an apocalyptic number.

It is an amenable number.

422321 is a deficient number, since it is larger than the sum of its proper divisors (1).

422321 is an equidigital number, since it uses as much as digits as its factorization.

422321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 14.

The square root of 422321 is about 649.8622931052. The cubic root of 422321 is about 75.0264203214.

Adding to 422321 its reverse (123224), we get a palindrome (545545).

The spelling of 422321 in words is "four hundred twenty-two thousand, three hundred twenty-one", and thus it is an iban number.