9000909 has 8 divisors (see below), whose sum is σ = 13334720. Its totient is φ = 6000588.

The previous prime is 9000907. The next prime is 9000913. The reversal of 9000909 is 9090009.

It is not a de Polignac number, because 9000909 - 2¹ = 9000907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 333367 = 9000909 / (9 + 0 + 0 + 0 + 9 + 0 + 9).

It is a Duffinian number.

9000909 is a modest number, since divided by 909 gives 900 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9000907) 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, 166657 + ... + 166710.

It is an arithmetic number, because the mean of its divisors is an integer number (1666840).

Almost surely, 2^9000909 is an apocalyptic number.

It is an amenable number.

9000909 is a deficient number, since it is larger than the sum of its proper divisors (4333811).

9000909 is a wasteful number, since it uses less digits than its factorization.

9000909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333376 (or 333370 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 27.

The square root of 9000909 is about 3000.1514961748. The cubic root of 9000909 is about 208.0153850183.

The spelling of 9000909 in words is "nine million, nine hundred nine", and thus it is an aban number.