6804644 has 24 divisors (see below), whose sum is σ = 14847168. Its totient is φ = 2651040.

The previous prime is 6804583. The next prime is 6804649. The reversal of 6804644 is 4464086.

It is a self number, because there is not a number n which added to its sum of digits gives 6804644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6804649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10739 + ... + 11354.

It is an arithmetic number, because the mean of its divisors is an integer number (618632).

Almost surely, 2^6804644 is an apocalyptic number.

It is an amenable number.

6804644 is an abundant number, since it is smaller than the sum of its proper divisors (8042524).

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

6804644 is a wasteful number, since it uses less digits than its factorization.

6804644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22115 (or 22113 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 6804644 is about 2608.5712564544. The cubic root of 6804644 is about 189.4967661884.

The spelling of 6804644 in words is "six million, eight hundred four thousand, six hundred forty-four".