804000566 has 16 divisors (see below), whose sum is σ = 1232293824. Its totient is φ = 393279744.

The previous prime is 804000563. The next prime is 804000583. The reversal of 804000566 is 665000408.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804000563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26675 + ... + 48161.

It is an arithmetic number, because the mean of its divisors is an integer number (77018364).

Almost surely, 2^804000566 is an apocalyptic number.

804000566 is a deficient number, since it is larger than the sum of its proper divisors (428293258).

804000566 is a wasteful number, since it uses less digits than its factorization.

804000566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21895.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 804000566 is about 28354.9037381544. The cubic root of 804000566 is about 929.8626096806.

The spelling of 804000566 in words is "eight hundred four million, five hundred sixty-six", and thus it is an aban number.