4607221 has 4 divisors (see below), whose sum is σ = 4878252. Its totient is φ = 4336192.

The previous prime is 4607219. The next prime is 4607227. The reversal of 4607221 is 1227064.

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 2604996 + 2002225 = 1614^2 + 1415^2 .

It is a cyclic number.

It is not a de Polignac number, because 4607221 - 2¹ = 4607219 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 4607192 and 4607201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4607227) 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, 135490 + ... + 135523.

It is an arithmetic number, because the mean of its divisors is an integer number (1219563).

Almost surely, 2^4607221 is an apocalyptic number.

It is an amenable number.

4607221 is a deficient number, since it is larger than the sum of its proper divisors (271031).

4607221 is a wasteful number, since it uses less digits than its factorization.

4607221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271030.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 4607221 is about 2146.4438031311. The cubic root of 4607221 is about 166.3973280859.

The spelling of 4607221 in words is "four million, six hundred seven thousand, two hundred twenty-one".