6855197 has 2 divisors, whose sum is σ = 6855198. Its totient is φ = 6855196.

The previous prime is 6855187. The next prime is 6855203. The reversal of 6855197 is 7915586.

6855197 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6832996 + 22201 = 2614^2 + 149^2 .

It is a cyclic number.

It is not a de Polignac number, because 6855197 - 2⁶ = 6855133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6855137) 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 as a sum of consecutive naturals, namely, 3427598 + 3427599.

It is an arithmetic number, because the mean of its divisors is an integer number (3427599).

Almost surely, 2^6855197 is an apocalyptic number.

It is an amenable number.

6855197 is a deficient number, since it is larger than the sum of its proper divisors (1).

6855197 is an equidigital number, since it uses as much as digits as its factorization.

6855197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 41.

The square root of 6855197 is about 2618.2431132345. The cubic root of 6855197 is about 189.9648780879.

The spelling of 6855197 in words is "six million, eight hundred fifty-five thousand, one hundred ninety-seven".