6855611 has 4 divisors (see below), whose sum is σ = 7834992. Its totient is φ = 5876232.

The previous prime is 6855593. The next prime is 6855631. The reversal of 6855611 is 1165586.

It is a happy number.

6855611 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1165586 = 2 ⋅582793.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6855611 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (6855631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489680 + ... + 489693.

It is an arithmetic number, because the mean of its divisors is an integer number (1958748).

Almost surely, 2^6855611 is an apocalyptic number.

6855611 is a deficient number, since it is larger than the sum of its proper divisors (979381).

6855611 is an equidigital number, since it uses as much as digits as its factorization.

6855611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979380.

The product of its digits is 7200, while the sum is 32.

The square root of 6855611 is about 2618.3221726900. The cubic root of 6855611 is about 189.9687021393.

The spelling of 6855611 in words is "six million, eight hundred fifty-five thousand, six hundred eleven".