8068409 has 8 divisors (see below), whose sum is σ = 8485320. Its totient is φ = 7660800.

The previous prime is 8068399. The next prime is 8068433. The reversal of 8068409 is 9048608.

It can be written as a sum of positive squares in 4 ways, for example, as 2809 + 8065600 = 53^2 + 2840^2 .

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 8068409 - 2¹² = 8064313 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8061409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512 + ... + 4049.

It is an arithmetic number, because the mean of its divisors is an integer number (1060665).

Almost surely, 2^8068409 is an apocalyptic number.

It is an amenable number.

8068409 is a deficient number, since it is larger than the sum of its proper divisors (416911).

8068409 is a wasteful number, since it uses less digits than its factorization.

8068409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 8068409 is about 2840.4944992026. The cubic root of 8068409 is about 200.5684577482.

The spelling of 8068409 in words is "eight million, sixty-eight thousand, four hundred nine".