6686000 has 40 divisors (see below), whose sum is σ = 16171584. Its totient is φ = 2673600.

The previous prime is 6685969. The next prime is 6686041. The reversal of 6686000 is 6866.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329 + ... + 3671.

Almost surely, 2^6686000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6686000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8085792).

6686000 is an abundant number, since it is smaller than the sum of its proper divisors (9485584).

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

6686000 is a wasteful number, since it uses less digits than its factorization.

6686000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366 (or 3350 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 6686000 is about 2585.7300709858. The cubic root of 6686000 is about 188.3889638221.

The spelling of 6686000 in words is "six million, six hundred eighty-six thousand".