11216856 has 64 divisors (see below), whose sum is σ = 32313600. Its totient is φ = 3178368.

The previous prime is 11216819. The next prime is 11216861. The reversal of 11216856 is 65861211.

11216856 = T₄₉ + T₅₀ + ... + T₄₀₆.

It is a congruent number.

It is an unprimeable number.

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, 29886 + ... + 30258.

It is an arithmetic number, because the mean of its divisors is an integer number (504900).

Almost surely, 2^11216856 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 11216856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16156800).

11216856 is an abundant number, since it is smaller than the sum of its proper divisors (21096744).

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

11216856 is a wasteful number, since it uses less digits than its factorization.

11216856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 564 counting only the distinct ones).

The product of its digits is 2880, while the sum is 30.

The square root of 11216856 is about 3349.1575060006. The cubic root of 11216856 is about 223.8499739459.

The spelling of 11216856 in words is "eleven million, two hundred sixteen thousand, eight hundred fifty-six".