422089 has 2 divisors, whose sum is σ = 422090. Its totient is φ = 422088.

The previous prime is 422087. The next prime is 422099. The reversal of 422089 is 980224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258064 + 164025 = 508^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 422089 - 2¹ = 422087 is a prime.

Together with 422087, it forms a pair of twin primes.

422089 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (422083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211044 + 211045.

It is an arithmetic number, because the mean of its divisors is an integer number (211045).

2⁴²²⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

422089 is a deficient number, since it is larger than the sum of its proper divisors (1).

422089 is an equidigital number, since it uses as much as digits as its factorization.

422089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 422089 is about 649.6837692293. The cubic root of 422089 is about 75.0126793378.

The spelling of 422089 in words is "four hundred twenty-two thousand, eighty-nine".