11887556 has 24 divisors (see below), whose sum is σ = 22407840. Its totient is φ = 5497472.

The previous prime is 11887553. The next prime is 11887583. The reversal of 11887556 is 65578811.

11887556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11887553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2531 + ... + 5493.

It is an arithmetic number, because the mean of its divisors is an integer number (933660).

Almost surely, 2^11887556 is an apocalyptic number.

It is an amenable number.

11887556 is a deficient number, since it is larger than the sum of its proper divisors (10520284).

11887556 is a wasteful number, since it uses less digits than its factorization.

11887556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3043 (or 3041 counting only the distinct ones).

The product of its digits is 67200, while the sum is 41.

The square root of 11887556 is about 3447.8335226632. The cubic root of 11887556 is about 228.2255129973.

The spelling of 11887556 in words is "eleven million, eight hundred eighty-seven thousand, five hundred fifty-six".