6000009 has 4 divisors (see below), whose sum is σ = 8000016. Its totient is φ = 4000004.

The previous prime is 5999993. The next prime is 6000011. The reversal of 6000009 is 9000006.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6000009 - 2⁴ = 5999993 is a prime.

It is a D-number.

6000009 is a strobogrammatic number because it is the same when read upside-down.

6000009 is a modest number, since divided by 9 gives 6 as remainder.

It is not an unprimeable number, because it can be changed into a prime (6000109) 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, 999999 + ... + 1000004.

It is an arithmetic number, because the mean of its divisors is an integer number (2000004).

Almost surely, 2^6000009 is an apocalyptic number.

It is an amenable number.

6000009 is a deficient number, since it is larger than the sum of its proper divisors (2000007).

6000009 is a wasteful number, since it uses less digits than its factorization.

6000009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000006.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 6000009 is about 2449.4915798998. The cubic root of 6000009 is about 181.7121501392.

The spelling of 6000009 in words is "six million, nine", and thus it is an aban number and an uban number.