445443223 has 2 divisors, whose sum is σ = 445443224. Its totient is φ = 445443222.

The previous prime is 445443211. The next prime is 445443233. The reversal of 445443223 is 322344544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 445443223 - 2⁵ = 445443191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445443233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222721611 + 222721612.

It is an arithmetic number, because the mean of its divisors is an integer number (222721612).

Almost surely, 2^445443223 is an apocalyptic number.

445443223 is a deficient number, since it is larger than the sum of its proper divisors (1).

445443223 is an equidigital number, since it uses as much as digits as its factorization.

445443223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 31.

The square root of 445443223 is about 21105.5258877859. The cubic root of 445443223 is about 763.7140587017.

Adding to 445443223 its reverse (322344544), we get a palindrome (767787767).

The spelling of 445443223 in words is "four hundred forty-five million, four hundred forty-three thousand, two hundred twenty-three".