12678865 has 8 divisors (see below), whose sum is σ = 15876288. Its totient is φ = 9702000.

The previous prime is 12678863. The next prime is 12678893. The reversal of 12678865 is 56887621.

12678865 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 not a de Polignac number, because 12678865 - 2¹ = 12678863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12678863) 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, 55011 + ... + 55240.

It is an arithmetic number, because the mean of its divisors is an integer number (1984536).

Almost surely, 2^12678865 is an apocalyptic number.

It is an amenable number.

12678865 is a deficient number, since it is larger than the sum of its proper divisors (3197423).

12678865 is a wasteful number, since it uses less digits than its factorization.

12678865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110279.

The product of its digits is 161280, while the sum is 43.

The square root of 12678865 is about 3560.7393895089. The cubic root of 12678865 is about 233.1811604162.

The spelling of 12678865 in words is "twelve million, six hundred seventy-eight thousand, eight hundred sixty-five".