9885220 has 24 divisors (see below), whose sum is σ = 20886264. Its totient is φ = 3929856.

The previous prime is 9885209. The next prime is 9885229. The reversal of 9885220 is 225889.

It can be written as a sum of positive squares in 4 ways, for example, as 3625216 + 6260004 = 1904^2 + 2502^2 .

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9885229) 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 7 ways as a sum of consecutive naturals, for example, 2032 + ... + 4888.

It is an arithmetic number, because the mean of its divisors is an integer number (870261).

Almost surely, 2^9885220 is an apocalyptic number.

It is an amenable number.

9885220 is an abundant number, since it is smaller than the sum of its proper divisors (11001044).

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

9885220 is a wasteful number, since it uses less digits than its factorization.

9885220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039 (or 3037 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 9885220 is about 3144.0769710680. The cubic root of 9885220 is about 214.6160083044.

The spelling of 9885220 in words is "nine million, eight hundred eighty-five thousand, two hundred twenty".