809184648 has 16 divisors (see below), whose sum is σ = 2022961680. Its totient is φ = 269728208.

The previous prime is 809184647. The next prime is 809184653. The reversal of 809184648 is 846481908.

It is a junction number, because it is equal to n+sod(n) for n = 809184597 and 809184606.

It is not an unprimeable number, because it can be changed into a prime (809184641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16857990 + ... + 16858037.

It is an arithmetic number, because the mean of its divisors is an integer number (126435105).

Almost surely, 2^809184648 is an apocalyptic number.

It is an amenable number.

809184648 is an abundant number, since it is smaller than the sum of its proper divisors (1213777032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

809184648 is a wasteful number, since it uses less digits than its factorization.

809184648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33716036 (or 33716032 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 809184648 is about 28446.1710604433. The cubic root of 809184648 is about 931.8568704541.

The spelling of 809184648 in words is "eight hundred nine million, one hundred eighty-four thousand, six hundred forty-eight".