809418704 has 20 divisors (see below), whose sum is σ = 1568691264. Its totient is φ = 404595168.

The previous prime is 809418641. The next prime is 809418707. The reversal of 809418704 is 407814908.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809418707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100889 + ... + 108615.

Almost surely, 2^809418704 is an apocalyptic number.

It is an amenable number.

809418704 is a deficient number, since it is larger than the sum of its proper divisors (759272560).

809418704 is a wasteful number, since it uses less digits than its factorization.

809418704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14282 (or 14276 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 809418704 is about 28450.2847788911. The cubic root of 809418704 is about 931.9467080729.

The spelling of 809418704 in words is "eight hundred nine million, four hundred eighteen thousand, seven hundred four".