12785886 has 12 divisors (see below), whose sum is σ = 27702792. Its totient is φ = 4261956.

The previous prime is 12785869. The next prime is 12785933. The reversal of 12785886 is 68858721.

12785886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 355146 + ... + 355181.

It is an arithmetic number, because the mean of its divisors is an integer number (2308566).

Almost surely, 2^12785886 is an apocalyptic number.

12785886 is an abundant number, since it is smaller than the sum of its proper divisors (14916906).

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

12785886 is a wasteful number, since it uses less digits than its factorization.

12785886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710335 (or 710332 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 12785886 is about 3575.7357284900. The cubic root of 12785886 is about 233.8354091312.

The spelling of 12785886 in words is "twelve million, seven hundred eighty-five thousand, eight hundred eighty-six".