12678293 has 4 divisors (see below), whose sum is σ = 12716928. Its totient is φ = 12639660.

The previous prime is 12678271. The next prime is 12678299. The reversal of 12678293 is 39287621.

12678293 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12678293 - 2¹⁶ = 12612757 is a prime.

It is a super-2 number, since 2×12678293² = 321478226787698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12678299) 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, 18821 + ... + 19482.

It is an arithmetic number, because the mean of its divisors is an integer number (3179232).

Almost surely, 2^12678293 is an apocalyptic number.

It is an amenable number.

12678293 is a deficient number, since it is larger than the sum of its proper divisors (38635).

12678293 is an equidigital number, since it uses as much as digits as its factorization.

12678293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38634.

The product of its digits is 36288, while the sum is 38.

The square root of 12678293 is about 3560.6590682063. The cubic root of 12678293 is about 233.1776537503.

The spelling of 12678293 in words is "twelve million, six hundred seventy-eight thousand, two hundred ninety-three".