4223543 has 2 divisors, whose sum is σ = 4223544. Its totient is φ = 4223542.

The previous prime is 4223539. The next prime is 4223551. The reversal of 4223543 is 3453224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4223543 - 2² = 4223539 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4223563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111771 + 2111772.

It is an arithmetic number, because the mean of its divisors is an integer number (2111772).

Almost surely, 2^4223543 is an apocalyptic number.

4223543 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223543 is an equidigital number, since it uses as much as digits as its factorization.

4223543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 23.

The square root of 4223543 is about 2055.1260301986. The cubic root of 4223543 is about 161.6437709218.

Adding to 4223543 its reverse (3453224), we get a palindrome (7676767).

The spelling of 4223543 in words is "four million, two hundred twenty-three thousand, five hundred forty-three".