12685872 has 20 divisors (see below), whose sum is σ = 32771960. Its totient is φ = 4228608.

The previous prime is 12685861. The next prime is 12685873. The reversal of 12685872 is 27858621.

It is a self number, because there is not a number n which added to its sum of digits gives 12685872.

It is not an unprimeable number, because it can be changed into a prime (12685873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132097 + ... + 132192.

It is an arithmetic number, because the mean of its divisors is an integer number (1638598).

Almost surely, 2^12685872 is an apocalyptic number.

12685872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12685872 is an abundant number, since it is smaller than the sum of its proper divisors (20086088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12685872 is a wasteful number, since it uses less digits than its factorization.

12685872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264300 (or 264294 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 12685872 is about 3561.7231784629. The cubic root of 12685872 is about 233.2241085163.

It can be divided in two parts, 1268 and 5872, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 12685872 in words is "twelve million, six hundred eighty-five thousand, eight hundred seventy-two".