9489909 has 24 divisors (see below), whose sum is σ = 14985376. Its totient is φ = 5306400.

The previous prime is 9489899. The next prime is 9489913. The reversal of 9489909 is 9099849.

It is a happy number.

9489909 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9489909 - 2⁵ = 9489877 is a prime.

It is a Duffinian number.

9489909 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9489979) 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 23 ways as a sum of consecutive naturals, for example, 3714 + ... + 5724.

Almost surely, 2^9489909 is an apocalyptic number.

It is an amenable number.

9489909 is a deficient number, since it is larger than the sum of its proper divisors (5495467).

9489909 is a wasteful number, since it uses less digits than its factorization.

9489909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 9489909 is about 3080.5695901895. The cubic root of 9489909 is about 211.7161637057.

The spelling of 9489909 in words is "nine million, four hundred eighty-nine thousand, nine hundred nine".