11587441 has 4 divisors (see below), whose sum is σ = 11594484. Its totient is φ = 11580400.

The previous prime is 11587393. The next prime is 11587451. The reversal of 11587441 is 14478511.

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 9585216 + 2002225 = 3096^2 + 1415^2 .

It is a cyclic number.

It is not a de Polignac number, because 11587441 - 2⁷ = 11587313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11587451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411 + ... + 4831.

It is an arithmetic number, because the mean of its divisors is an integer number (2898621).

Almost surely, 2^11587441 is an apocalyptic number.

It is an amenable number.

11587441 is a deficient number, since it is larger than the sum of its proper divisors (7043).

11587441 is an equidigital number, since it uses as much as digits as its factorization.

11587441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7042.

The product of its digits is 4480, while the sum is 31.

The square root of 11587441 is about 3404.0330491933. The cubic root of 11587441 is about 226.2885147541.

The spelling of 11587441 in words is "eleven million, five hundred eighty-seven thousand, four hundred forty-one".