12927691 has 8 divisors (see below), whose sum is σ = 14796800. Its totient is φ = 11064168.

The previous prime is 12927683. The next prime is 12927703. The reversal of 12927691 is 19672921.

12927691 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12927691 - 2³ = 12927683 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12927691.

It is not an unprimeable number, because it can be changed into a prime (12927631) 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, 6760 + ... + 8458.

It is an arithmetic number, because the mean of its divisors is an integer number (1849600).

Almost surely, 2^12927691 is an apocalyptic number.

12927691 is a deficient number, since it is larger than the sum of its proper divisors (1869109).

12927691 is a wasteful number, since it uses less digits than its factorization.

12927691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793.

The product of its digits is 13608, while the sum is 37.

The square root of 12927691 is about 3595.5098386738. The cubic root of 12927691 is about 234.6967024316.

The spelling of 12927691 in words is "twelve million, nine hundred twenty-seven thousand, six hundred ninety-one".