805318804 has 12 divisors (see below), whose sum is σ = 1415463700. Its totient is φ = 400900608.

The previous prime is 805318799. The next prime is 805318807. The reversal of 805318804 is 408813508.

It can be written as a sum of positive squares in 2 ways, for example, as 673298704 + 132020100 = 25948^2 + 11490^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805318807) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 438669 + ... + 440500.

Almost surely, 2^805318804 is an apocalyptic number.

It is an amenable number.

805318804 is a deficient number, since it is larger than the sum of its proper divisors (610144896).

805318804 is a wasteful number, since it uses less digits than its factorization.

805318804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879402 (or 879400 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 805318804 is about 28378.1395443746. The cubic root of 805318804 is about 930.3705325848.

The spelling of 805318804 in words is "eight hundred five million, three hundred eighteen thousand, eight hundred four".