8182809 has 16 divisors (see below), whose sum is σ = 12451840. Its totient is φ = 5307120.

The previous prime is 8182793. The next prime is 8182813. The reversal of 8182809 is 9082818.

It is not a de Polignac number, because 8182809 - 2⁴ = 8182793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8182819) 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 15 ways as a sum of consecutive naturals, for example, 3097 + ... + 5094.

It is an arithmetic number, because the mean of its divisors is an integer number (778240).

Almost surely, 2^8182809 is an apocalyptic number.

It is an amenable number.

8182809 is a deficient number, since it is larger than the sum of its proper divisors (4269031).

8182809 is a wasteful number, since it uses less digits than its factorization.

8182809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8237 (or 8231 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 8182809 is about 2860.5609589729. The cubic root of 8182809 is about 201.5119495732.

Subtracting 8182809 from its reverse (9082818), we obtain a palindrome (900009).

The spelling of 8182809 in words is "eight million, one hundred eighty-two thousand, eight hundred nine".