6857117 has 2 divisors, whose sum is σ = 6857118. Its totient is φ = 6857116.

The previous prime is 6857101. The next prime is 6857141. The reversal of 6857117 is 7117586.

6857117 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3511876 + 3345241 = 1874^2 + 1829^2 .

It is a cyclic number.

It is not a de Polignac number, because 6857117 - 2⁴ = 6857101 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6857177) 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, 3428558 + 3428559.

It is an arithmetic number, because the mean of its divisors is an integer number (3428559).

Almost surely, 2^6857117 is an apocalyptic number.

It is an amenable number.

6857117 is a deficient number, since it is larger than the sum of its proper divisors (1).

6857117 is an equidigital number, since it uses as much as digits as its factorization.

6857117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 35.

The square root of 6857117 is about 2618.6097456475. The cubic root of 6857117 is about 189.9826115204.

The spelling of 6857117 in words is "six million, eight hundred fifty-seven thousand, one hundred seventeen".