424543 has 4 divisors (see below), whose sum is σ = 485200. Its totient is φ = 363888.

The previous prime is 424537. The next prime is 424547. The reversal of 424543 is 345424.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-424543 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 (424547) 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, 30318 + ... + 30331.

It is an arithmetic number, because the mean of its divisors is an integer number (121300).

2⁴²⁴⁵⁴³ is an apocalyptic number.

424543 is a deficient number, since it is larger than the sum of its proper divisors (60657).

424543 is an equidigital number, since it uses as much as digits as its factorization.

424543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60656.

The product of its digits is 1920, while the sum is 22.

The square root of 424543 is about 651.5696432462. The cubic root of 424543 is about 75.1577715794.

Adding to 424543 its reverse (345424), we get a palindrome (769967).

The spelling of 424543 in words is "four hundred twenty-four thousand, five hundred forty-three".