12857286 has 16 divisors (see below), whose sum is σ = 27692784. Its totient is φ = 3956064.

The previous prime is 12857279. The next prime is 12857297. The reversal of 12857286 is 68275821.

12857286 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 (39).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82341 + ... + 82496.

It is an arithmetic number, because the mean of its divisors is an integer number (1730799).

Almost surely, 2^12857286 is an apocalyptic number.

12857286 is an abundant number, since it is smaller than the sum of its proper divisors (14835498).

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

12857286 is a wasteful number, since it uses less digits than its factorization.

12857286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164855.

The product of its digits is 53760, while the sum is 39.

The square root of 12857286 is about 3585.7057882654. The cubic root of 12857286 is about 234.2698690808.

The spelling of 12857286 in words is "twelve million, eight hundred fifty-seven thousand, two hundred eighty-six".