9274221 has 24 divisors (see below), whose sum is σ = 15253056. Its totient is φ = 5375040.

The previous prime is 9274217. The next prime is 9274247. The reversal of 9274221 is 1224729.

9274221 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9274221 - 2² = 9274217 is a prime.

It is a super-2 number, since 2×9274221² = 172022350313682, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9274721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241 + ... + 4313.

It is an arithmetic number, because the mean of its divisors is an integer number (635544).

Almost surely, 2^9274221 is an apocalyptic number.

It is an amenable number.

9274221 is a deficient number, since it is larger than the sum of its proper divisors (5978835).

9274221 is a wasteful number, since it uses less digits than its factorization.

9274221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4113 (or 4110 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 9274221 is about 3045.3605697848. The cubic root of 9274221 is about 210.0998844562.

The spelling of 9274221 in words is "nine million, two hundred seventy-four thousand, two hundred twenty-one".