12808613 has 8 divisors (see below), whose sum is σ = 13141440. Its totient is φ = 12480160.

The previous prime is 12808589. The next prime is 12808619. The reversal of 12808613 is 31680821.

12808613 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 12808613 - 2⁸ = 12808357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12808619) 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, 5306 + ... + 7332.

It is an arithmetic number, because the mean of its divisors is an integer number (1642680).

Almost surely, 2^12808613 is an apocalyptic number.

It is an amenable number.

12808613 is a deficient number, since it is larger than the sum of its proper divisors (332827).

12808613 is an equidigital number, since it uses as much as digits as its factorization.

12808613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 12808613 is about 3578.9122649207. The cubic root of 12808613 is about 233.9738751363.

The spelling of 12808613 in words is "twelve million, eight hundred eight thousand, six hundred thirteen".