9899604 has 96 divisors (see below), whose sum is σ = 30199680. Its totient is φ = 2764800.

The previous prime is 9899599. The next prime is 9899611. The reversal of 9899604 is 4069989.

It is a self number, because there is not a number n which added to its sum of digits gives 9899604.

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 31 ways as a sum of consecutive naturals, for example, 15124 + ... + 15764.

It is an arithmetic number, because the mean of its divisors is an integer number (314580).

Almost surely, 2^9899604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9899604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15099840).

9899604 is an abundant number, since it is smaller than the sum of its proper divisors (20300076).

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

9899604 is a wasteful number, since it uses less digits than its factorization.

9899604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 9899604 is about 3146.3636153503. The cubic root of 9899604 is about 214.7200538915.

The spelling of 9899604 in words is "nine million, eight hundred ninety-nine thousand, six hundred four".