9904500 has 144 divisors (see below), whose sum is σ = 32707584. Its totient is φ = 2520000.

The previous prime is 9904487. The next prime is 9904519. The reversal of 9904500 is 54099.

It is a happy number.

It is an Ulam number.

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 47 ways as a sum of consecutive naturals, for example, 139465 + ... + 139535.

It is an arithmetic number, because the mean of its divisors is an integer number (227136).

Almost surely, 2^9904500 is an apocalyptic number.

9904500 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9904500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16353792).

9904500 is an abundant number, since it is smaller than the sum of its proper divisors (22803084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9904500 is a wasteful number, since it uses less digits than its factorization.

9904500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 9904500 is about 3147.1415602098. The cubic root of 9904500 is about 214.7554457491.

Adding to 9904500 its reverse (54099), we get a palindrome (9958599).

It can be divided in two parts, 9904 and 500, that added together give a square (10404 = 102²).

The spelling of 9904500 in words is "nine million, nine hundred four thousand, five hundred".