805928 has 8 divisors (see below), whose sum is σ = 1511130. Its totient is φ = 402960.

The previous prime is 805913. The next prime is 805933. The reversal of 805928 is 829508.

It can be written as a sum of positive squares in only one way, i.e., 702244 + 103684 = 838^2 + 322^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 805894 and 805903.

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, 50363 + ... + 50378.

2⁸⁰⁵⁹²⁸ is an apocalyptic number.

It is an amenable number.

805928 is a deficient number, since it is larger than the sum of its proper divisors (705202).

805928 is a wasteful number, since it uses less digits than its factorization.

805928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100747 (or 100743 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 805928 is about 897.7349274702. The cubic root of 805928 is about 93.0605071233.

The spelling of 805928 in words is "eight hundred five thousand, nine hundred twenty-eight".