8103809 has 8 divisors (see below), whose sum is σ = 9287808. Its totient is φ = 6926400.

The previous prime is 8103779. The next prime is 8103811. The reversal of 8103809 is 9083018.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8103809 - 2⁸ = 8103553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8103409) 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 7 ways as a sum of consecutive naturals, for example, 1364 + ... + 4250.

It is an arithmetic number, because the mean of its divisors is an integer number (1160976).

Almost surely, 2^8103809 is an apocalyptic number.

It is an amenable number.

8103809 is a deficient number, since it is larger than the sum of its proper divisors (1183999).

8103809 is a wasteful number, since it uses less digits than its factorization.

8103809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3295.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 8103809 is about 2846.7189885902. The cubic root of 8103809 is about 200.8613599694.

The spelling of 8103809 in words is "eight million, one hundred three thousand, eight hundred nine".