9220549 has 4 divisors (see below), whose sum is σ = 9929836. Its totient is φ = 8511264.

The previous prime is 9220537. The next prime is 9220559. The reversal of 9220549 is 9450229.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2160900 + 7059649 = 1470^2 + 2657^2 .

It is a cyclic number.

It is not a de Polignac number, because 9220549 - 2¹⁵ = 9187781 is a prime.

It is a super-2 number, since 2×9220549² = 170037047722802, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9220549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9220559) 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 3 ways as a sum of consecutive naturals, for example, 354624 + ... + 354649.

It is an arithmetic number, because the mean of its divisors is an integer number (2482459).

Almost surely, 2^9220549 is an apocalyptic number.

It is an amenable number.

9220549 is a deficient number, since it is larger than the sum of its proper divisors (709287).

9220549 is a wasteful number, since it uses less digits than its factorization.

9220549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709286.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 9220549 is about 3036.5356905526. The cubic root of 9220549 is about 209.6938016745.

The spelling of 9220549 in words is "nine million, two hundred twenty thousand, five hundred forty-nine".