6804561 has 8 divisors (see below), whose sum is σ = 9090784. Its totient is φ = 4527360.

The previous prime is 6804557. The next prime is 6804563. The reversal of 6804561 is 1654086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6804561 - 2² = 6804557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6804563) 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, 235 + ... + 3696.

It is an arithmetic number, because the mean of its divisors is an integer number (1136348).

Almost surely, 2^6804561 is an apocalyptic number.

It is an amenable number.

6804561 is a deficient number, since it is larger than the sum of its proper divisors (2286223).

6804561 is a wasteful number, since it uses less digits than its factorization.

6804561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 6804561 is about 2608.5553473139. Note that the first 3 decimals coincide. The cubic root of 6804561 is about 189.4959957197.

The spelling of 6804561 in words is "six million, eight hundred four thousand, five hundred sixty-one".