9999200 has 72 divisors (see below), whose sum is σ = 25310880. Its totient is φ = 3852800.

The previous prime is 9999193. The next prime is 9999217. The reversal of 9999200 is 29999.

It is an Ulam number.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22985 + ... + 23415.

It is an arithmetic number, because the mean of its divisors is an integer number (351540).

Almost surely, 2^9999200 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 9999200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12655440).

9999200 is an abundant number, since it is smaller than the sum of its proper divisors (15311680).

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

9999200 is a wasteful number, since it uses less digits than its factorization.

9999200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 9999200 is about 3162.1511665320. The cubic root of 9999200 is about 215.4377236908.

It can be divided in two parts, 99 and 99200, that added together give a palindrome (99299).

The spelling of 9999200 in words is "nine million, nine hundred ninety-nine thousand, two hundred".