9109009 has 16 divisors (see below), whose sum is σ = 11576320. Its totient is φ = 6972480.

The previous prime is 9108977. The next prime is 9109019. The reversal of 9109009 is 9009019.

9109009 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 9109009 - 2⁵ = 9108977 is a prime.

9109009 is a modest number, since divided by 9009 gives 910 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9109019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1207 + ... + 4435.

It is an arithmetic number, because the mean of its divisors is an integer number (723520).

Almost surely, 2^9109009 is an apocalyptic number.

It is an amenable number.

9109009 is a deficient number, since it is larger than the sum of its proper divisors (2467311).

9109009 is a wasteful number, since it uses less digits than its factorization.

9109009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3280.

The product of its (nonzero) digits is 729, while the sum is 28.

The square root of 9109009 is about 3018.1134836185. The cubic root of 9109009 is about 208.8448212059.

The spelling of 9109009 in words is "nine million, one hundred nine thousand, nine".