222447 has 4 divisors (see below), whose sum is σ = 296600. Its totient is φ = 148296.

The previous prime is 222437. The next prime is 222461. The reversal of 222447 is 744222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 222447 - 2¹¹ = 220399 is a prime.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37072 + ... + 37077.

It is an arithmetic number, because the mean of its divisors is an integer number (74150).

2²²²⁴⁴⁷ is an apocalyptic number.

222447 is a deficient number, since it is larger than the sum of its proper divisors (74153).

222447 is an equidigital number, since it uses as much as digits as its factorization.

222447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74152.

The product of its digits is 896, while the sum is 21.

The square root of 222447 is about 471.6428733692. The cubic root of 222447 is about 60.5911019623.

Adding to 222447 its reverse (744222), we get a palindrome (966669).

The spelling of 222447 in words is "two hundred twenty-two thousand, four hundred forty-seven", and thus it is an iban number.