422543 has 8 divisors (see below), whose sum is σ = 466560. Its totient is φ = 379480.

The previous prime is 422537. The next prime is 422549. The reversal of 422543 is 345224.

It is an interprime number because it is at equal distance from previous prime (422537) and next prime (422549).

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 422543 - 2⁶ = 422479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422549) 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 in 7 ways as a sum of consecutive naturals, for example, 998 + ... + 1356.

It is an arithmetic number, because the mean of its divisors is an integer number (58320).

2⁴²²⁵⁴³ is an apocalyptic number.

422543 is a deficient number, since it is larger than the sum of its proper divisors (44017).

422543 is a wasteful number, since it uses less digits than its factorization.

422543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477.

The product of its digits is 960, while the sum is 20.

The square root of 422543 is about 650.0330760815. The cubic root of 422543 is about 75.0395643104.

Adding to 422543 its reverse (345224), we get a palindrome (767767).

The spelling of 422543 in words is "four hundred twenty-two thousand, five hundred forty-three".