1244447 has 2 divisors, whose sum is σ = 1244448. Its totient is φ = 1244446.

The previous prime is 1244437. The next prime is 1244459. The reversal of 1244447 is 7444421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244447 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622223 + 622224.

It is an arithmetic number, because the mean of its divisors is an integer number (622224).

2^1244447 is an apocalyptic number.

1244447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244447 is an equidigital number, since it uses as much as digits as its factorization.

1244447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3584, while the sum is 26.

The square root of 1244447 is about 1115.5478474723. The cubic root of 1244447 is about 107.5619833636.

Subtracting from 1244447 its sum of digits (26), we obtain a palindrome (1244421).

Adding to 1244447 its reverse (7444421), we get a palindrome (8688868).

The spelling of 1244447 in words is "one million, two hundred forty-four thousand, four hundred forty-seven".