12680085 has 64 divisors (see below), whose sum is σ = 23814144. Its totient is φ = 5702400.

The previous prime is 12680077. The next prime is 12680117. The reversal of 12680085 is 58008621.

It is not a de Polignac number, because 12680085 - 2³ = 12680077 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 189222 + ... + 189288.

It is an arithmetic number, because the mean of its divisors is an integer number (372096).

Almost surely, 2^12680085 is an apocalyptic number.

12680085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12680085 is a deficient number, since it is larger than the sum of its proper divisors (11134059).

12680085 is a wasteful number, since it uses less digits than its factorization.

12680085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 12680085 is about 3560.9106981220. The cubic root of 12680085 is about 233.1886393162.

The spelling of 12680085 in words is "twelve million, six hundred eighty thousand, eighty-five".