11644441 has 4 divisors (see below), whose sum is σ = 11652532. Its totient is φ = 11636352.

The previous prime is 11644433. The next prime is 11644453. The reversal of 11644441 is 14444611.

It is a happy number.

11644441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3686400 + 7958041 = 1920^2 + 2821^2 .

It is a cyclic number.

It is not a de Polignac number, because 11644441 - 2³ = 11644433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11614441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1236 + ... + 4981.

It is an arithmetic number, because the mean of its divisors is an integer number (2913133).

Almost surely, 2^11644441 is an apocalyptic number.

It is an amenable number.

11644441 is a deficient number, since it is larger than the sum of its proper divisors (8091).

11644441 is an equidigital number, since it uses as much as digits as its factorization.

11644441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8090.

The product of its digits is 1536, while the sum is 25.

The square root of 11644441 is about 3412.3951998560. The cubic root of 11644441 is about 226.6589547069.

The spelling of 11644441 in words is "eleven million, six hundred forty-four thousand, four hundred forty-one".