2243447 has 4 divisors (see below), whose sum is σ = 2249496. Its totient is φ = 2237400.

The previous prime is 2243431. The next prime is 2243453. The reversal of 2243447 is 7443422.

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

It is a cyclic number.

It is not a de Polignac number, because 2243447 - 2⁴ = 2243431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243467) 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 3 ways as a sum of consecutive naturals, for example, 2429 + ... + 3222.

It is an arithmetic number, because the mean of its divisors is an integer number (562374).

2^2243447 is an apocalyptic number.

2243447 is a deficient number, since it is larger than the sum of its proper divisors (6049).

2243447 is an equidigital number, since it uses as much as digits as its factorization.

2243447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6048.

The product of its digits is 5376, while the sum is 26.

The square root of 2243447 is about 1497.8140739090. The cubic root of 2243447 is about 130.9097332817.

Adding to 2243447 its reverse (7443422), we get a palindrome (9686869).

The spelling of 2243447 in words is "two million, two hundred forty-three thousand, four hundred forty-seven".