1444447 has 2 divisors, whose sum is σ = 1444448. Its totient is φ = 1444446.

The previous prime is 1444441. The next prime is 1444459. The reversal of 1444447 is 7444441.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7444441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1444447 - 2¹⁵ = 1411679 is a 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 (1444441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722223 + 722224.

It is an arithmetic number, because the mean of its divisors is an integer number (722224).

2^1444447 is an apocalyptic number.

1444447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444447 is an equidigital number, since it uses as much as digits as its factorization.

1444447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7168, while the sum is 28.

The square root of 1444447 is about 1201.8514883296. The cubic root of 1444447 is about 113.0404480986.

Adding to 1444447 its reverse (7444441), we get a palindrome (8888888).

It can be divided in two parts, 1444 and 447, that added together give a triangular number (1891 = T₆₁).

The spelling of 1444447 in words is "one million, four hundred forty-four thousand, four hundred forty-seven".