12406685 has 16 divisors (see below), whose sum is σ = 15857856. Its totient is φ = 9285888.

The previous prime is 12406673. The next prime is 12406687. The reversal of 12406685 is 58660421.

It is a cyclic number.

It is not a de Polignac number, because 12406685 - 2⁶ = 12406621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12406687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18974 + ... + 19616.

It is an arithmetic number, because the mean of its divisors is an integer number (991116).

Almost surely, 2^12406685 is an apocalyptic number.

It is an amenable number.

12406685 is a deficient number, since it is larger than the sum of its proper divisors (3451171).

12406685 is a wasteful number, since it uses less digits than its factorization.

12406685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 12406685 is about 3522.3124506494. The cubic root of 12406685 is about 231.5004921410.

The spelling of 12406685 in words is "twelve million, four hundred six thousand, six hundred eighty-five".