12386678 has 4 divisors (see below), whose sum is σ = 18580020. Its totient is φ = 6193338.

The previous prime is 12386669. The next prime is 12386687. The reversal of 12386678 is 87668321.

It is a happy number.

12386678 is digitally balanced in base 2, 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 an emirpimes, since its reverse is a distinct semiprime: 87668321 = 13 ⋅6743717.

It is an interprime number because it is at equal distance from previous prime (12386669) and next prime (12386687).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3096668 + ... + 3096671.

It is an arithmetic number, because the mean of its divisors is an integer number (4645005).

Almost surely, 2^12386678 is an apocalyptic number.

12386678 is a deficient number, since it is larger than the sum of its proper divisors (6193342).

12386678 is an equidigital number, since it uses as much as digits as its factorization.

12386678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6193341.

The product of its digits is 96768, while the sum is 41.

The square root of 12386678 is about 3519.4712671082. The cubic root of 12386678 is about 231.3759860855.

The spelling of 12386678 in words is "twelve million, three hundred eighty-six thousand, six hundred seventy-eight".