805004 has 6 divisors (see below), whose sum is σ = 1408764. Its totient is φ = 402500.

The previous prime is 804997. The next prime is 805019. The reversal of 805004 is 400508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100622 + ... + 100629.

It is an arithmetic number, because the mean of its divisors is an integer number (234794).

2⁸⁰⁵⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

805004 is a deficient number, since it is larger than the sum of its proper divisors (603760).

805004 is a wasteful number, since it uses less digits than its factorization.

805004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201255 (or 201253 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 805004 is about 897.2201513564. The cubic root of 805004 is about 93.0249287625.

Subtracting from 805004 its reverse (400508), we obtain a square (404496 = 636²).

The spelling of 805004 in words is "eight hundred five thousand, four".