422479 has 2 divisors, whose sum is σ = 422480. Its totient is φ = 422478.

The previous prime is 422459. The next prime is 422537. The reversal of 422479 is 974224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422479 is a prime.

It is a Chen prime.

It is equal to p₃₅₅₇₈ and since 422479 and 35578 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211239 + 211240.

It is an arithmetic number, because the mean of its divisors is an integer number (211240).

2⁴²²⁴⁷⁹ is an apocalyptic number.

422479 is a deficient number, since it is larger than the sum of its proper divisors (1).

422479 is an equidigital number, since it uses as much as digits as its factorization.

422479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The square root of 422479 is about 649.9838459531. The cubic root of 422479 is about 75.0357755247.

The spelling of 422479 in words is "four hundred twenty-two thousand, four hundred seventy-nine".