12047856 has 40 divisors (see below), whose sum is σ = 31248000. Its totient is φ = 3999936.

The previous prime is 12047851. The next prime is 12047863. The reversal of 12047856 is 65874021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12047851) 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, 23701 + ... + 24203.

It is an arithmetic number, because the mean of its divisors is an integer number (781200).

Almost surely, 2^12047856 is an apocalyptic number.

12047856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12047856 is an abundant number, since it is smaller than the sum of its proper divisors (19200144).

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

12047856 is a wasteful number, since it uses less digits than its factorization.

12047856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013 (or 1007 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 12047856 is about 3471.0021607599. The cubic root of 12047856 is about 229.2467861935.

The spelling of 12047856 in words is "twelve million, forty-seven thousand, eight hundred fifty-six".