12685885 has 8 divisors (see below), whose sum is σ = 15481440. Its totient is φ = 9976464.

The previous prime is 12685873. The next prime is 12685889. The reversal of 12685885 is 58858621.

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 12685885 - 2²¹ = 10588733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12685889) 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 7 ways as a sum of consecutive naturals, for example, 21207 + ... + 21796.

It is an arithmetic number, because the mean of its divisors is an integer number (1935180).

Almost surely, 2^12685885 is an apocalyptic number.

It is an amenable number.

12685885 is a deficient number, since it is larger than the sum of its proper divisors (2795555).

12685885 is an equidigital number, since it uses as much as digits as its factorization.

12685885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43067.

The product of its digits is 153600, while the sum is 43.

The square root of 12685885 is about 3561.7250034218. The cubic root of 12685885 is about 233.2241881827.

The spelling of 12685885 in words is "twelve million, six hundred eighty-five thousand, eight hundred eighty-five".