9345221 has 4 divisors (see below), whose sum is σ = 9667500. Its totient is φ = 9022944.

The previous prime is 9345209. The next prime is 9345269. The reversal of 9345221 is 1225439.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1225439 = 601 ⋅2039.

It can be written as a sum of positive squares in 2 ways, for example, as 6832996 + 2512225 = 2614^2 + 1585^2 .

It is not a de Polignac number, because 9345221 - 2⁶ = 9345157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9345421) 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, 161096 + ... + 161153.

It is an arithmetic number, because the mean of its divisors is an integer number (2416875).

Almost surely, 2^9345221 is an apocalyptic number.

It is an amenable number.

9345221 is a deficient number, since it is larger than the sum of its proper divisors (322279).

9345221 is a wasteful number, since it uses less digits than its factorization.

9345221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322278.

The product of its digits is 2160, while the sum is 26.

The square root of 9345221 is about 3056.9954203433. The cubic root of 9345221 is about 210.6346710185.

The spelling of 9345221 in words is "nine million, three hundred forty-five thousand, two hundred twenty-one".