9899800 has 24 divisors (see below), whose sum is σ = 23017500. Its totient is φ = 3959840.

The previous prime is 9899789. The next prime is 9899809. The reversal of 9899800 is 89989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9899809) 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 5 ways as a sum of consecutive naturals, for example, 24550 + ... + 24949.

Almost surely, 2^9899800 is an apocalyptic number.

It is an amenable number.

9899800 is an abundant number, since it is smaller than the sum of its proper divisors (13117700).

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

9899800 is a wasteful number, since it uses less digits than its factorization.

9899800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49515 (or 49506 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 9899800 is about 3146.3947622636. The cubic root of 9899800 is about 214.7214709466.

The spelling of 9899800 in words is "nine million, eight hundred ninety-nine thousand, eight hundred".