6855111 has 10 divisors (see below), whose sum is σ = 10240472. Its totient is φ = 4570020.

The previous prime is 6855089. The next prime is 6855113. The reversal of 6855111 is 1115586.

It is not a de Polignac number, because 6855111 - 2⁷ = 6854983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855113) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 42235 + ... + 42396.

Almost surely, 2^6855111 is an apocalyptic number.

6855111 is a deficient number, since it is larger than the sum of its proper divisors (3385361).

6855111 is an equidigital number, since it uses as much as digits as its factorization.

6855111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84643 (or 84634 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

The square root of 6855111 is about 2618.2266899564. The cubic root of 6855111 is about 189.9640837004.

The spelling of 6855111 in words is "six million, eight hundred fifty-five thousand, one hundred eleven".