6855678 has 40 divisors (see below), whose sum is σ = 15550920. Its totient is φ = 2257200.

The previous prime is 6855677. The next prime is 6855683. The reversal of 6855678 is 8765586.

6855678 is a `hidden beast` number, since 6 + 85 + 567 + 8 = 666.

Its product of digits (403200) is a multiple of the sum of its prime divisors (525).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855671) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16153 + ... + 16571.

It is an arithmetic number, because the mean of its divisors is an integer number (388773).

Almost surely, 2^6855678 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6855678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7775460).

6855678 is an abundant number, since it is smaller than the sum of its proper divisors (8695242).

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

6855678 is a wasteful number, since it uses less digits than its factorization.

6855678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 525 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 6855678 is about 2618.3349671117. The cubic root of 6855678 is about 189.9693209930.

The spelling of 6855678 in words is "six million, eight hundred fifty-five thousand, six hundred seventy-eight".