9904556 has 12 divisors (see below), whose sum is σ = 17542392. Its totient is φ = 4892448.

The previous prime is 9904547. The next prime is 9904579. The reversal of 9904556 is 6554099.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14585 + ... + 15248.

It is an arithmetic number, because the mean of its divisors is an integer number (1461866).

Almost surely, 2^9904556 is an apocalyptic number.

It is an amenable number.

9904556 is a deficient number, since it is larger than the sum of its proper divisors (7637836).

9904556 is a wasteful number, since it uses less digits than its factorization.

9904556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29920 (or 29918 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 9904556 is about 3147.1504571596. The cubic root of 9904556 is about 214.7558504904.

The spelling of 9904556 in words is "nine million, nine hundred four thousand, five hundred fifty-six".