12678578 has 8 divisors (see below), whose sum is σ = 20746800. Its totient is φ = 5762980.

The previous prime is 12678577. The next prime is 12678619. The reversal of 12678578 is 87587621.

12678578 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 an unprimeable number, because it can be changed into a prime (12678571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288128 + ... + 288171.

It is an arithmetic number, because the mean of its divisors is an integer number (2593350).

Almost surely, 2^12678578 is an apocalyptic number.

12678578 is a deficient number, since it is larger than the sum of its proper divisors (8068222).

12678578 is a wasteful number, since it uses less digits than its factorization.

12678578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576312.

The product of its digits is 188160, while the sum is 44.

The square root of 12678578 is about 3560.6990886622. The cubic root of 12678578 is about 233.1794009659.

The spelling of 12678578 in words is "twelve million, six hundred seventy-eight thousand, five hundred seventy-eight".