11727856 has 40 divisors (see below), whose sum is σ = 26511200. Its totient is φ = 5023872.

The previous prime is 11727839. The next prime is 11727857. The reversal of 11727856 is 65872711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11727857) 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, 4420 + ... + 6556.

It is an arithmetic number, because the mean of its divisors is an integer number (662780).

Almost surely, 2^11727856 is an apocalyptic number.

11727856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11727856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13255600).

11727856 is an abundant number, since it is smaller than the sum of its proper divisors (14783344).

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

11727856 is an equidigital number, since it uses as much as digits as its factorization.

11727856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166 (or 2146 counting only the distinct ones).

The product of its digits is 23520, while the sum is 37.

The square root of 11727856 is about 3424.5957425658. The cubic root of 11727856 is about 227.1988915836.

The spelling of 11727856 in words is "eleven million, seven hundred twenty-seven thousand, eight hundred fifty-six".