11856856 has 32 divisors (see below), whose sum is σ = 24626880. Its totient is φ = 5306400.

The previous prime is 11856841. The next prime is 11856857. The reversal of 11856856 is 65865811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11856857) 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, 4891 + ... + 6901.

It is an arithmetic number, because the mean of its divisors is an integer number (769590).

Almost surely, 2^11856856 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 11856856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12313440).

11856856 is an abundant number, since it is smaller than the sum of its proper divisors (12770024).

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

11856856 is a wasteful number, since it uses less digits than its factorization.

11856856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2095 (or 2091 counting only the distinct ones).

The product of its digits is 57600, while the sum is 40.

The square root of 11856856 is about 3443.3785734363. The cubic root of 11856856 is about 228.0288770237.

The spelling of 11856856 in words is "eleven million, eight hundred fifty-six thousand, eight hundred fifty-six".