11987056 has 20 divisors (see below), whose sum is σ = 23348952. Its totient is φ = 5961536.

The previous prime is 11987051. The next prime is 11987077. The reversal of 11987056 is 65078911.

11987056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11987051) 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, 1251 + ... + 5053.

Almost surely, 2^11987056 is an apocalyptic number.

11987056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11987056 is a deficient number, since it is larger than the sum of its proper divisors (11361896).

11987056 is a wasteful number, since it uses less digits than its factorization.

11987056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008 (or 4002 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 11987056 is about 3462.2328055750. The cubic root of 11987056 is about 228.8605012221.

The spelling of 11987056 in words is "eleven million, nine hundred eighty-seven thousand, fifty-six".