9870222 has 16 divisors (see below), whose sum is σ = 19825920. Its totient is φ = 3275832.

The previous prime is 9870199. The next prime is 9870241. The reversal of 9870222 is 2220789.

It is a self number, because there is not a number n which added to its sum of digits gives 9870222.

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 7 ways as a sum of consecutive naturals, for example, 2008 + ... + 4875.

It is an arithmetic number, because the mean of its divisors is an integer number (1239120).

Almost surely, 2^9870222 is an apocalyptic number.

9870222 is an abundant number, since it is smaller than the sum of its proper divisors (9955698).

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

9870222 is a wasteful number, since it uses less digits than its factorization.

9870222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7127.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 9870222 is about 3141.6909459716. The cubic root of 9870222 is about 214.5074138526.

The spelling of 9870222 in words is "nine million, eight hundred seventy thousand, two hundred twenty-two".