11722856 has 16 divisors (see below), whose sum is σ = 22309440. Its totient is φ = 5773680.

The previous prime is 11722831. The next prime is 11722861. The reversal of 11722856 is 65822711.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10400 + ... + 11471.

It is an arithmetic number, because the mean of its divisors is an integer number (1394340).

Almost surely, 2^11722856 is an apocalyptic number.

It is an amenable number.

11722856 is a deficient number, since it is larger than the sum of its proper divisors (10586584).

11722856 is a wasteful number, since it uses less digits than its factorization.

11722856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21944 (or 21940 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 11722856 is about 3423.8656515699. The cubic root of 11722856 is about 227.1665993517.

The spelling of 11722856 in words is "eleven million, seven hundred twenty-two thousand, eight hundred fifty-six".