8030009 has 4 divisors (see below), whose sum is σ = 8647716. Its totient is φ = 7412304.

The previous prime is 8029993. The next prime is 8030021. The reversal of 8030009 is 9000308.

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 4141225 + 3888784 = 2035^2 + 1972^2 .

It is a cyclic number.

It is not a de Polignac number, because 8030009 - 2⁴ = 8029993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8030039) 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 3 ways as a sum of consecutive naturals, for example, 308834 + ... + 308859.

It is an arithmetic number, because the mean of its divisors is an integer number (2161929).

Almost surely, 2^8030009 is an apocalyptic number.

It is an amenable number.

8030009 is a deficient number, since it is larger than the sum of its proper divisors (617707).

8030009 is a wasteful number, since it uses less digits than its factorization.

8030009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617706.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 8030009 is about 2833.7270510760. The cubic root of 8030009 is about 200.2497629625.

Subtracting 8030009 from its reverse (9000308), we obtain a cube (970299 = 99³).

The spelling of 8030009 in words is "eight million, thirty thousand, nine".