422863 has 8 divisors (see below), whose sum is σ = 487328. Its totient is φ = 359424.

The previous prime is 422861. The next prime is 422867. The reversal of 422863 is 368224.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 422863 - 2¹ = 422861 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195 + ... + 1507.

It is an arithmetic number, because the mean of its divisors is an integer number (60916).

2⁴²²⁸⁶³ is an apocalyptic number.

422863 is a deficient number, since it is larger than the sum of its proper divisors (64465).

422863 is a wasteful number, since it uses less digits than its factorization.

422863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513.

The product of its digits is 2304, while the sum is 25.

The square root of 422863 is about 650.2791708182. The cubic root of 422863 is about 75.0585025024.

The spelling of 422863 in words is "four hundred twenty-two thousand, eight hundred sixty-three".