6864678 has 12 divisors (see below), whose sum is σ = 14873508. Its totient is φ = 2288220.

The previous prime is 6864661. The next prime is 6864691. The reversal of 6864678 is 8764686.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190668 + ... + 190703.

It is an arithmetic number, because the mean of its divisors is an integer number (1239459).

Almost surely, 2^6864678 is an apocalyptic number.

6864678 is an abundant number, since it is smaller than the sum of its proper divisors (8008830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6864678 is a wasteful number, since it uses less digits than its factorization.

6864678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381379 (or 381376 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 6864678 is about 2620.0530528980. The cubic root of 6864678 is about 190.0524139791.

It can be divided in two parts, 68 and 64678, that added together give a palindrome (64746).

The spelling of 6864678 in words is "six million, eight hundred sixty-four thousand, six hundred seventy-eight".