12768361 has 4 divisors (see below), whose sum is σ = 13440400. Its totient is φ = 12096324.

The previous prime is 12768347. The next prime is 12768383. The reversal of 12768361 is 16386721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12768361 - 2⁷ = 12768233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12768341) 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 3 ways as a sum of consecutive naturals, for example, 335991 + ... + 336028.

It is an arithmetic number, because the mean of its divisors is an integer number (3360100).

Almost surely, 2^12768361 is an apocalyptic number.

It is an amenable number.

12768361 is a deficient number, since it is larger than the sum of its proper divisors (672039).

12768361 is an equidigital number, since it uses as much as digits as its factorization.

12768361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672038.

The product of its digits is 12096, while the sum is 34.

The square root of 12768361 is about 3573.2843435697. The cubic root of 12768361 is about 233.7285246268.

The spelling of 12768361 in words is "twelve million, seven hundred sixty-eight thousand, three hundred sixty-one".