12726684 has 36 divisors (see below), whose sum is σ = 32281704. Its totient is φ = 4227552.

The previous prime is 12726673. The next prime is 12726689. The reversal of 12726684 is 48662721.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12726689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16434 + ... + 17190.

It is an arithmetic number, because the mean of its divisors is an integer number (896714).

Almost surely, 2^12726684 is an apocalyptic number.

It is an amenable number.

12726684 is an abundant number, since it is smaller than the sum of its proper divisors (19555020).

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

12726684 is a wasteful number, since it uses less digits than its factorization.

12726684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234 (or 1229 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 12726684 is about 3567.4478272289. The cubic root of 12726684 is about 233.4739442732.

The spelling of 12726684 in words is "twelve million, seven hundred twenty-six thousand, six hundred eighty-four".