9068221 has 4 divisors (see below), whose sum is σ = 9133600. Its totient is φ = 9002844.

The previous prime is 9068209. The next prime is 9068237. The reversal of 9068221 is 1228609.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1228609 = 233 ⋅5273.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9068221 is a prime.

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 9068221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9068201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32481 + ... + 32758.

It is an arithmetic number, because the mean of its divisors is an integer number (2283400).

Almost surely, 2^9068221 is an apocalyptic number.

It is an amenable number.

9068221 is a deficient number, since it is larger than the sum of its proper divisors (65379).

9068221 is a wasteful number, since it uses less digits than its factorization.

9068221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65378.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 9068221 is about 3011.3487011636. The cubic root of 9068221 is about 208.5326354457.

The spelling of 9068221 in words is "nine million, sixty-eight thousand, two hundred twenty-one".