804994566 has 8 divisors (see below), whose sum is σ = 1609989144. Its totient is φ = 268331520.

The previous prime is 804994559. The next prime is 804994573. The reversal of 804994566 is 665499408.

It is an interprime number because it is at equal distance from previous prime (804994559) and next prime (804994573).

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

804994566 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67082875 + ... + 67082886.

It is an arithmetic number, because the mean of its divisors is an integer number (201248643).

Almost surely, 2^804994566 is an apocalyptic number.

804994566 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

804994566 is a wasteful number, since it uses less digits than its factorization.

804994566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134165766.

The product of its (nonzero) digits is 1866240, while the sum is 51.

The square root of 804994566 is about 28372.4261563935. The cubic root of 804994566 is about 930.2456536866.

The spelling of 804994566 in words is "eight hundred four million, nine hundred ninety-four thousand, five hundred sixty-six".