6686170 has 8 divisors (see below), whose sum is σ = 12035124. Its totient is φ = 2674464.

The previous prime is 6686167. The next prime is 6686177. The reversal of 6686170 is 716866.

It can be written as a sum of positive squares in 2 ways, for example, as 6558721 + 127449 = 2561^2 + 357^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×6686170³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6686177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334299 + ... + 334318.

Almost surely, 2^6686170 is an apocalyptic number.

6686170 is a deficient number, since it is larger than the sum of its proper divisors (5348954).

6686170 is a wasteful number, since it uses less digits than its factorization.

6686170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668624.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 6686170 is about 2585.7629435043. The cubic root of 6686170 is about 188.3905604844.

It can be divided in two parts, 66861 and 70, that multiplied together give a triangular number (4680270 = T₃₀₅₉).

The spelling of 6686170 in words is "six million, six hundred eighty-six thousand, one hundred seventy".