11447856 has 120 divisors (see below), whose sum is σ = 37643424. Its totient is φ = 3179520.

The previous prime is 11447801. The next prime is 11447869. The reversal of 11447856 is 65874411.

It is a happy number.

11447856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11447856.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41190 + ... + 41466.

Almost surely, 2^11447856 is an apocalyptic number.

11447856 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 11447856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18821712).

11447856 is an abundant number, since it is smaller than the sum of its proper divisors (26195568).

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

11447856 is a wasteful number, since it uses less digits than its factorization.

11447856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 330 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 11447856 is about 3383.4680432952. The cubic root of 11447856 is about 225.3762002718.

The spelling of 11447856 in words is "eleven million, four hundred forty-seven thousand, eight hundred fifty-six".