9012009 has 8 divisors (see below), whose sum is σ = 12029920. Its totient is φ = 6001056.

The previous prime is 9012007. The next prime is 9012013. The reversal of 9012009 is 9002109.

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 9012009 - 2¹ = 9012007 is a prime.

It is a Duffinian number.

9012009 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9012001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3894 + ... + 5760.

It is an arithmetic number, because the mean of its divisors is an integer number (1503740).

Almost surely, 2^9012009 is an apocalyptic number.

It is an amenable number.

9012009 is a deficient number, since it is larger than the sum of its proper divisors (3017911).

9012009 is a wasteful number, since it uses less digits than its factorization.

9012009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 9012009 is about 3002.0008327780. Note that the first 3 decimals coincide. The cubic root of 9012009 is about 208.1008586920.

The spelling of 9012009 in words is "nine million, twelve thousand, nine".