9221572 has 6 divisors (see below), whose sum is σ = 16137758. Its totient is φ = 4610784.

The previous prime is 9221567. The next prime is 9221617. The reversal of 9221572 is 2751229.

It can be written as a sum of positive squares in only one way, i.e., 9096256 + 125316 = 3016^2 + 354^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9221572.

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 as a sum of consecutive naturals, namely, 1152693 + ... + 1152700.

Almost surely, 2^9221572 is an apocalyptic number.

It is an amenable number.

9221572 is a deficient number, since it is larger than the sum of its proper divisors (6916186).

9221572 is a wasteful number, since it uses less digits than its factorization.

9221572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2305397 (or 2305395 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 9221572 is about 3036.7041344194. The cubic root of 9221572 is about 209.7015564125.

The spelling of 9221572 in words is "nine million, two hundred twenty-one thousand, five hundred seventy-two".