12012686 has 32 divisors (see below), whose sum is σ = 21565440. Its totient is φ = 4910400.

The previous prime is 12012677. The next prime is 12012743. The reversal of 12012686 is 68621021.

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 15 ways as a sum of consecutive naturals, for example, 38471 + ... + 38781.

It is an arithmetic number, because the mean of its divisors is an integer number (673920).

Almost surely, 2^12012686 is an apocalyptic number.

12012686 is a deficient number, since it is larger than the sum of its proper divisors (9552754).

12012686 is a wasteful number, since it uses less digits than its factorization.

12012686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 12012686 is about 3465.9321978365. The cubic root of 12012686 is about 229.0234970137.

The spelling of 12012686 in words is "twelve million, twelve thousand, six hundred eighty-six".