8069009 has 4 divisors (see below), whose sum is σ = 8689716. Its totient is φ = 7448304.

The previous prime is 8068969. The next prime is 8069041. The reversal of 8069009 is 9009608.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2907025 + 5161984 = 1705^2 + 2272^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8069009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8069069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310334 + ... + 310359.

It is an arithmetic number, because the mean of its divisors is an integer number (2172429).

Almost surely, 2^8069009 is an apocalyptic number.

It is an amenable number.

8069009 is a deficient number, since it is larger than the sum of its proper divisors (620707).

8069009 is a wasteful number, since it uses less digits than its factorization.

8069009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620706.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 8069009 is about 2840.6001126523. The cubic root of 8069009 is about 200.5734293228.

The spelling of 8069009 in words is "eight million, sixty-nine thousand, nine".