9221994 has 12 divisors (see below), whose sum is σ = 19981026. Its totient is φ = 3073992.

The previous prime is 9221987. The next prime is 9221999. The reversal of 9221994 is 4991229.

It can be written as a sum of positive squares in only one way, i.e., 9090225 + 131769 = 3015^2 + 363^2 .

It is not an unprimeable number, because it can be changed into a prime (9221999) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 256149 + ... + 256184.

Almost surely, 2^9221994 is an apocalyptic number.

9221994 is an abundant number, since it is smaller than the sum of its proper divisors (10759032).

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

9221994 is a wasteful number, since it uses less digits than its factorization.

9221994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512341 (or 512338 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 9221994 is about 3036.7736168506. The cubic root of 9221994 is about 209.7047551697.

It can be divided in two parts, 922 and 1994, that added together give a square (2916 = 54²).

The spelling of 9221994 in words is "nine million, two hundred twenty-one thousand, nine hundred ninety-four".