11447 has 2 divisors, whose sum is σ = 11448. Its totient is φ = 11446.

The previous prime is 11443. The next prime is 11467. The reversal of 11447 is 74411.

It is a weak prime.

It is an emirp because it is prime and its reverse (74411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11447 - 2² = 11443 is a prime.

It is a Chen prime.

It is a plaindrome in base 6 and base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5723 + 5724.

It is an arithmetic number, because the mean of its divisors is an integer number (5724).

2¹¹⁴⁴⁷ is an apocalyptic number.

11447 is a deficient number, since it is larger than the sum of its proper divisors (1).

11447 is an equidigital number, since it uses as much as digits as its factorization.

11447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112, while the sum is 17.

The square root of 11447 is about 106.9906537974. The cubic root of 11447 is about 22.5370582718.

Adding to 11447 its reverse (74411), we get a palindrome (85858).

It can be divided in two parts, 1144 and 7, that multiplied together give a palindrome (8008).

The spelling of 11447 in words is "eleven thousand, four hundred forty-seven", and thus it is an iban number.