12686842 has 8 divisors (see below), whose sum is σ = 21748896. Its totient is φ = 5437212.

The previous prime is 12686827. The next prime is 12686867. The reversal of 12686842 is 24868621.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 453088 + ... + 453115.

It is an arithmetic number, because the mean of its divisors is an integer number (2718612).

Almost surely, 2^12686842 is an apocalyptic number.

12686842 is a deficient number, since it is larger than the sum of its proper divisors (9062054).

12686842 is an equidigital number, since it uses as much as digits as its factorization.

12686842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906212.

The product of its digits is 36864, while the sum is 37.

The square root of 12686842 is about 3561.8593459035. The cubic root of 12686842 is about 233.2300527042.

It can be divided in two parts, 126 and 86842, that added together give a palindrome (86968).

The spelling of 12686842 in words is "twelve million, six hundred eighty-six thousand, eight hundred forty-two".