12943286 has 4 divisors (see below), whose sum is σ = 19414932. Its totient is φ = 6471642.

The previous prime is 12943277. The next prime is 12943297. The reversal of 12943286 is 68234921.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3235820 + ... + 3235823.

It is an arithmetic number, because the mean of its divisors is an integer number (4853733).

Almost surely, 2^12943286 is an apocalyptic number.

12943286 is a deficient number, since it is larger than the sum of its proper divisors (6471646).

12943286 is an equidigital number, since it uses as much as digits as its factorization.

12943286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6471645.

The product of its digits is 20736, while the sum is 35.

The square root of 12943286 is about 3597.6778621772. The cubic root of 12943286 is about 234.7910380276.

The spelling of 12943286 in words is "twelve million, nine hundred forty-three thousand, two hundred eighty-six".