12256712 has 32 divisors (see below), whose sum is σ = 25132800. Its totient is φ = 5569344.

The previous prime is 12256697. The next prime is 12256733. The reversal of 12256712 is 21765221.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6089 + ... + 7847.

It is an arithmetic number, because the mean of its divisors is an integer number (785400).

Almost surely, 2^12256712 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 12256712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12566400).

12256712 is an abundant number, since it is smaller than the sum of its proper divisors (12876088).

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

12256712 is a wasteful number, since it uses less digits than its factorization.

12256712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845 (or 1841 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 12256712 is about 3500.9587258350. The cubic root of 12256712 is about 230.5639092945.

The spelling of 12256712 in words is "twelve million, two hundred fifty-six thousand, seven hundred twelve".