12686038 has 4 divisors (see below), whose sum is σ = 19029060. Its totient is φ = 6343018.

The previous prime is 12686017. The next prime is 12686039. The reversal of 12686038 is 83068621.

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

It is a junction number, because it is equal to n+sod(n) for n = 12685994 and 12686012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12686039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3171508 + ... + 3171511.

It is an arithmetic number, because the mean of its divisors is an integer number (4757265).

Almost surely, 2^12686038 is an apocalyptic number.

12686038 is a deficient number, since it is larger than the sum of its proper divisors (6343022).

12686038 is an equidigital number, since it uses as much as digits as its factorization.

12686038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6343021.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 12686038 is about 3561.7464817137. The cubic root of 12686038 is about 233.2251257906.

The spelling of 12686038 in words is "twelve million, six hundred eighty-six thousand, thirty-eight".