11887544 has 16 divisors (see below), whose sum is σ = 22520400. Its totient is φ = 5882112.

The previous prime is 11887543. The next prime is 11887549. The reversal of 11887544 is 44578811.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11887498 and 11887507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11887541) 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, 6884 + ... + 8435.

It is an arithmetic number, because the mean of its divisors is an integer number (1407525).

Almost surely, 2^11887544 is an apocalyptic number.

It is an amenable number.

11887544 is a deficient number, since it is larger than the sum of its proper divisors (10632856).

11887544 is a wasteful number, since it uses less digits than its factorization.

11887544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15422 (or 15418 counting only the distinct ones).

The product of its digits is 35840, while the sum is 38.

The square root of 11887544 is about 3447.8317824395. The cubic root of 11887544 is about 228.2254362025.

The spelling of 11887544 in words is "eleven million, eight hundred eighty-seven thousand, five hundred forty-four".