6855804 has 36 divisors (see below), whose sum is σ = 17801784. Its totient is φ = 2223072.

The previous prime is 6855799. The next prime is 6855809. The reversal of 6855804 is 4085586.

It is a happy number.

6855804 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6855799) and next prime (6855809).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1242 + ... + 3905.

It is an arithmetic number, because the mean of its divisors is an integer number (494494).

Almost surely, 2^6855804 is an apocalyptic number.

It is an amenable number.

6855804 is an abundant number, since it is smaller than the sum of its proper divisors (10945980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6855804 is a wasteful number, since it uses less digits than its factorization.

6855804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5194 (or 5189 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 6855804 is about 2618.3590280937. The cubic root of 6855804 is about 189.9704847966.

It can be divided in two parts, 685580 and 4, that added together give a square (685584 = 828²).

The spelling of 6855804 in words is "six million, eight hundred fifty-five thousand, eight hundred four".