804434866 has 16 divisors (see below), whose sum is σ = 1291992120. Its totient is φ = 374302720.

The previous prime is 804434791. The next prime is 804434923. The reversal of 804434866 is 668434408.

It can be written as a sum of positive squares in 4 ways, for example, as 765684241 + 38750625 = 27671^2 + 6225^2 .

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 7 ways as a sum of consecutive naturals, for example, 129895 + ... + 135946.

Almost surely, 2^804434866 is an apocalyptic number.

804434866 is a deficient number, since it is larger than the sum of its proper divisors (487557254).

804434866 is a wasteful number, since it uses less digits than its factorization.

804434866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265949.

The product of its (nonzero) digits is 442368, while the sum is 43.

The square root of 804434866 is about 28362.5609915607. The cubic root of 804434866 is about 930.0300086667.

The spelling of 804434866 in words is "eight hundred four million, four hundred thirty-four thousand, eight hundred sixty-six".