2010009 has 8 divisors (see below), whose sum is σ = 2766592. Its totient is φ = 1296720.

The previous prime is 2009999. The next prime is 2010017. The reversal of 2010009 is 9000102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2010009 - 2⁵ = 2009977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2009976 and 2010003.

It is not an unprimeable number, because it can be changed into a prime (2010089) 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 7 ways as a sum of consecutive naturals, for example, 10714 + ... + 10899.

It is an arithmetic number, because the mean of its divisors is an integer number (345824).

2^2010009 is an apocalyptic number.

It is an amenable number.

2010009 is a deficient number, since it is larger than the sum of its proper divisors (756583).

2010009 is a wasteful number, since it uses less digits than its factorization.

2010009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21647.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 2010009 is about 1417.7478619275. The cubic root of 2010009 is about 126.2019311825.

The spelling of 2010009 in words is "two million, ten thousand, nine".