12086856 has 24 divisors (see below), whose sum is σ = 32735430. Its totient is φ = 4028928.

The previous prime is 12086843. The next prime is 12086857. The reversal of 12086856 is 65868021.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11329956 + 756900 = 3366^2 + 870^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12086856.

It is not an unprimeable number, because it can be changed into a prime (12086857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 83865 + ... + 84008.

Almost surely, 2^12086856 is an apocalyptic number.

It is an amenable number.

12086856 is an abundant number, since it is smaller than the sum of its proper divisors (20648574).

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

12086856 is a wasteful number, since it uses less digits than its factorization.

12086856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167885 (or 167878 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 12086856 is about 3476.6155956620. The cubic root of 12086856 is about 229.4938839557.

The spelling of 12086856 in words is "twelve million, eighty-six thousand, eight hundred fifty-six".