8921200 has 30 divisors (see below), whose sum is σ = 21434144. Its totient is φ = 3568320.

The previous prime is 8921197. The next prime is 8921207. The reversal of 8921200 is 21298.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8921207) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10752 + ... + 11551.

Almost surely, 2^8921200 is an apocalyptic number.

8921200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8921200 is an abundant number, since it is smaller than the sum of its proper divisors (12512944).

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

8921200 is a wasteful number, since it uses less digits than its factorization.

8921200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22321 (or 22310 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 8921200 is about 2986.8377927166. The cubic root of 8921200 is about 207.3995255571.

Adding to 8921200 its reverse (21298), we get a palindrome (8942498).

The spelling of 8921200 in words is "eight million, nine hundred twenty-one thousand, two hundred".