11984447 has 4 divisors (see below), whose sum is σ = 12108096. Its totient is φ = 11860800.

The previous prime is 11984443. The next prime is 11984461. The reversal of 11984447 is 74448911.

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 11984447 - 2² = 11984443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11984447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11984443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61679 + ... + 61872.

It is an arithmetic number, because the mean of its divisors is an integer number (3027024).

Almost surely, 2^11984447 is an apocalyptic number.

11984447 is a deficient number, since it is larger than the sum of its proper divisors (123649).

11984447 is an equidigital number, since it uses as much as digits as its factorization.

11984447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123648.

The product of its digits is 32256, while the sum is 38.

The square root of 11984447 is about 3461.8560050932. The cubic root of 11984447 is about 228.8438960781.

The spelling of 11984447 in words is "eleven million, nine hundred eighty-four thousand, four hundred forty-seven".