447223 has 6 divisors (see below), whose sum is σ = 520296. Its totient is φ = 383292.

The previous prime is 447221. The next prime is 447233. The reversal of 447223 is 322744.

It is not a de Polignac number, because 447223 - 2¹ = 447221 is a prime.

447223 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 447194 and 447203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447221) 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 5 ways as a sum of consecutive naturals, for example, 4515 + ... + 4612.

It is an arithmetic number, because the mean of its divisors is an integer number (86716).

2⁴⁴⁷²²³ is an apocalyptic number.

447223 is a deficient number, since it is larger than the sum of its proper divisors (73073).

447223 is an equidigital number, since it uses as much as digits as its factorization.

447223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9141 (or 9134 counting only the distinct ones).

The product of its digits is 1344, while the sum is 22.

The square root of 447223 is about 668.7473364433. The cubic root of 447223 is about 76.4729851784.

Adding to 447223 its reverse (322744), we get a palindrome (769967).

It can be divided in two parts, 447 and 223, that multiplied together give a triangular number (99681 = T₄₄₆).

The spelling of 447223 in words is "four hundred forty-seven thousand, two hundred twenty-three", and thus it is an iban number.