9860220 has 36 divisors (see below), whose sum is σ = 29909880. Its totient is φ = 2629344.

The previous prime is 9860219. The next prime is 9860231. The reversal of 9860220 is 220689.

It is a tau number, because it is divible by the number of its divisors (36).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27210 + ... + 27569.

It is an arithmetic number, because the mean of its divisors is an integer number (830830).

Almost surely, 2^9860220 is an apocalyptic number.

9860220 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9860220 is an abundant number, since it is smaller than the sum of its proper divisors (20049660).

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

9860220 is a wasteful number, since it uses less digits than its factorization.

9860220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54794 (or 54789 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 9860220 is about 3140.0987245627. The cubic root of 9860220 is about 214.4349322583.

The spelling of 9860220 in words is "nine million, eight hundred sixty thousand, two hundred twenty".