12807691 has 8 divisors (see below), whose sum is σ = 14519120. Its totient is φ = 11200032.

The previous prime is 12807677. The next prime is 12807713. The reversal of 12807691 is 19670821.

It is a happy number.

12807691 is digitally balanced in base 2, 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 12807691 - 2⁷ = 12807563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12807601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25680 + ... + 26173.

It is an arithmetic number, because the mean of its divisors is an integer number (1814890).

Almost surely, 2^12807691 is an apocalyptic number.

12807691 is a deficient number, since it is larger than the sum of its proper divisors (1711429).

12807691 is a wasteful number, since it uses less digits than its factorization.

12807691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51885.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 12807691 is about 3578.7834525157. The cubic root of 12807691 is about 233.9682609690.

The spelling of 12807691 in words is "twelve million, eight hundred seven thousand, six hundred ninety-one".