12685683 has 4 divisors (see below), whose sum is σ = 16914248. Its totient is φ = 8457120.

The previous prime is 12685681. The next prime is 12685733. The reversal of 12685683 is 38658621.

It is a happy number.

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

It is not a de Polignac number, because 12685683 - 2¹ = 12685681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12685681) 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 in 3 ways as a sum of consecutive naturals, for example, 2114278 + ... + 2114283.

It is an arithmetic number, because the mean of its divisors is an integer number (4228562).

Almost surely, 2^12685683 is an apocalyptic number.

12685683 is a deficient number, since it is larger than the sum of its proper divisors (4228565).

12685683 is an equidigital number, since it uses as much as digits as its factorization.

12685683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228564.

The product of its digits is 69120, while the sum is 39.

The square root of 12685683 is about 3561.6966462628. The cubic root of 12685683 is about 233.2229502836. Note that the first 3 decimals are identical.

The spelling of 12685683 in words is "twelve million, six hundred eighty-five thousand, six hundred eighty-three".