9213229 has 4 divisors (see below), whose sum is σ = 9294876. Its totient is φ = 9131584.

The previous prime is 9213227. The next prime is 9213283. The reversal of 9213229 is 9223129.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9223129 = 17 ⋅542537.

It can be written as a sum of positive squares in 2 ways, for example, as 3992004 + 5221225 = 1998^2 + 2285^2 .

It is a cyclic number.

It is not a de Polignac number, because 9213229 - 2¹ = 9213227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9213197 and 9213206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9213221) 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, 40654 + ... + 40879.

It is an arithmetic number, because the mean of its divisors is an integer number (2323719).

Almost surely, 2^9213229 is an apocalyptic number.

It is an amenable number.

9213229 is a deficient number, since it is larger than the sum of its proper divisors (81647).

9213229 is a wasteful number, since it uses less digits than its factorization.

9213229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81646.

The product of its digits is 1944, while the sum is 28.

The square root of 9213229 is about 3035.3301303153. The cubic root of 9213229 is about 209.6382964836.

The spelling of 9213229 in words is "nine million, two hundred thirteen thousand, two hundred twenty-nine".