443220223 has 2 divisors, whose sum is σ = 443220224. Its totient is φ = 443220222.

The previous prime is 443220181. The next prime is 443220247. The reversal of 443220223 is 322022344.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-443220223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 443220194 and 443220203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443220523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221610111 + 221610112.

It is an arithmetic number, because the mean of its divisors is an integer number (221610112).

Almost surely, 2^443220223 is an apocalyptic number.

443220223 is a deficient number, since it is larger than the sum of its proper divisors (1).

443220223 is an equidigital number, since it uses as much as digits as its factorization.

443220223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 443220223 is about 21052.7960850810. The cubic root of 443220223 is about 762.4414921693.

Adding to 443220223 its reverse (322022344), we get a palindrome (765242567).

The spelling of 443220223 in words is "four hundred forty-three million, two hundred twenty thousand, two hundred twenty-three".