443423 has 2 divisors, whose sum is σ = 443424. Its totient is φ = 443422.

The previous prime is 443419. The next prime is 443431. The reversal of 443423 is 324344.

It is a happy number.

443423 is nontrivially palindromic in base 15.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 443423 - 2² = 443419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 443395 and 443404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221711 + 221712.

It is an arithmetic number, because the mean of its divisors is an integer number (221712).

2⁴⁴³⁴²³ is an apocalyptic number.

443423 is a deficient number, since it is larger than the sum of its proper divisors (1).

443423 is an equidigital number, since it uses as much as digits as its factorization.

443423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 20.

The square root of 443423 is about 665.9001426640. The cubic root of 443423 is about 76.2557748918.

Adding to 443423 its reverse (324344), we get a palindrome (767767).

The spelling of 443423 in words is "four hundred forty-three thousand, four hundred twenty-three", and thus it is an iban number.