422843 has 4 divisors (see below), whose sum is σ = 424320. Its totient is φ = 421368.

The previous prime is 422827. The next prime is 422857. The reversal of 422843 is 348224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422843 - 2⁴ = 422827 is a prime.

It is a super-3 number, since 3×422843³ = 226808168150133321, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422803) 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 3 ways as a sum of consecutive naturals, for example, 155 + ... + 932.

It is an arithmetic number, because the mean of its divisors is an integer number (106080).

2⁴²²⁸⁴³ is an apocalyptic number.

422843 is a deficient number, since it is larger than the sum of its proper divisors (1477).

422843 is a wasteful number, since it uses less digits than its factorization.

422843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476.

The product of its digits is 1536, while the sum is 23.

The square root of 422843 is about 650.2637926257. The cubic root of 422843 is about 75.0573191453.

It can be divided in two parts, 422 and 843, that multiplied together give a triangular number (355746 = T₈₄₃).

The spelling of 422843 in words is "four hundred twenty-two thousand, eight hundred forty-three".