9881250 has 96 divisors (see below), whose sum is σ = 26998272. Its totient is φ = 2400000.

The previous prime is 9881239. The next prime is 9881269. The reversal of 9881250 is 521889.

It is a happy 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, 318735 + ... + 318765.

It is an arithmetic number, because the mean of its divisors is an integer number (281232).

Almost surely, 2^9881250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9881250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13499136).

9881250 is an abundant number, since it is smaller than the sum of its proper divisors (17117022).

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

9881250 is a wasteful number, since it uses less digits than its factorization.

9881250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 9881250 is about 3143.4455618000. The cubic root of 9881250 is about 214.5872738355.

The spelling of 9881250 in words is "nine million, eight hundred eighty-one thousand, two hundred fifty".