12686843 has 8 divisors (see below), whose sum is σ = 14103936. Its totient is φ = 11332800.

The previous prime is 12686827. The next prime is 12686867. The reversal of 12686843 is 34868621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12686843 - 2⁴ = 12686827 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12686797 and 12686806.

It is not an unprimeable number, because it can be changed into a prime (12682843) 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, 15338 + ... + 16143.

It is an arithmetic number, because the mean of its divisors is an integer number (1762992).

Almost surely, 2^12686843 is an apocalyptic number.

12686843 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12686843 is a deficient number, since it is larger than the sum of its proper divisors (1417093).

12686843 is a wasteful number, since it uses less digits than its factorization.

12686843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31525.

The product of its digits is 55296, while the sum is 38.

The square root of 12686843 is about 3561.8594862796. The cubic root of 12686843 is about 233.2300588321.

The spelling of 12686843 in words is "twelve million, six hundred eighty-six thousand, eight hundred forty-three".