11786856 has 64 divisors (see below), whose sum is σ = 31173120. Its totient is φ = 3706560.

The previous prime is 11786839. The next prime is 11786857. The reversal of 11786856 is 65868711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11786857) 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 15 ways as a sum of consecutive naturals, for example, 72231 + ... + 72393.

It is an arithmetic number, because the mean of its divisors is an integer number (487080).

Almost surely, 2^11786856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11786856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15586560).

11786856 is an abundant number, since it is smaller than the sum of its proper divisors (19386264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11786856 is a wasteful number, since it uses less digits than its factorization.

11786856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326 (or 322 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 11786856 is about 3433.1990912267. The cubic root of 11786856 is about 227.5792486458.

The spelling of 11786856 in words is "eleven million, seven hundred eighty-six thousand, eight hundred fifty-six".