9904609 has 8 divisors (see below), whose sum is σ = 11636352. Its totient is φ = 8311440.

The previous prime is 9904589. The next prime is 9904613. The reversal of 9904609 is 9064099.

9904609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9904609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9904649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34489 + ... + 34774.

It is an arithmetic number, because the mean of its divisors is an integer number (1454544).

Almost surely, 2^9904609 is an apocalyptic number.

It is an amenable number.

9904609 is a deficient number, since it is larger than the sum of its proper divisors (1731743).

9904609 is a wasteful number, since it uses less digits than its factorization.

9904609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69287.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 9904609 is about 3147.1588774639. The cubic root of 9904609 is about 214.7562335478.

The spelling of 9904609 in words is "nine million, nine hundred four thousand, six hundred nine".