8075209 has 6 divisors (see below), whose sum is σ = 8522970. Its totient is φ = 7649856.

The previous prime is 8075203. The next prime is 8075219. The reversal of 8075209 is 9025708.

8075209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6775609 + 1299600 = 2603^2 + 1140^2 .

It is not a de Polignac number, because 8075209 - 2⁹ = 8074697 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8075203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10824 + ... + 11545.

It is an arithmetic number, because the mean of its divisors is an integer number (1420495).

Almost surely, 2^8075209 is an apocalyptic number.

It is an amenable number.

8075209 is a deficient number, since it is larger than the sum of its proper divisors (447761).

8075209 is a wasteful number, since it uses less digits than its factorization.

8075209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22407 (or 22388 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 8075209 is about 2841.6912217903. The cubic root of 8075209 is about 200.6247878350.

The spelling of 8075209 in words is "eight million, seventy-five thousand, two hundred nine".