11912856 has 32 divisors (see below), whose sum is σ = 30004800. Its totient is φ = 3941280.

The previous prime is 11912851. The next prime is 11912891. The reversal of 11912856 is 65821911.

11912856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11912856² = 283832276153472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11912851) 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, 1551 + ... + 5121.

It is an arithmetic number, because the mean of its divisors is an integer number (937650).

Almost surely, 2^11912856 is an apocalyptic number.

It is an amenable number.

11912856 is an abundant number, since it is smaller than the sum of its proper divisors (18091944).

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

11912856 is a wasteful number, since it uses less digits than its factorization.

11912856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3719 (or 3715 counting only the distinct ones).

The product of its digits is 4320, while the sum is 33.

The square root of 11912856 is about 3451.5005432420. The cubic root of 11912856 is about 228.3873072304.

The spelling of 11912856 in words is "eleven million, nine hundred twelve thousand, eight hundred fifty-six".