4633221 has 4 divisors (see below), whose sum is σ = 6177632. Its totient is φ = 3088812.

The previous prime is 4633219. The next prime is 4633259. The reversal of 4633221 is 1223364.

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.

It is not a de Polignac number, because 4633221 - 2¹ = 4633219 is a prime.

It is a D-number.

It is a Duffinian number.

4633221 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4633201) 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, 772201 + ... + 772206.

It is an arithmetic number, because the mean of its divisors is an integer number (1544408).

Almost surely, 2^4633221 is an apocalyptic number.

It is an amenable number.

4633221 is a deficient number, since it is larger than the sum of its proper divisors (1544411).

4633221 is a wasteful number, since it uses less digits than its factorization.

4633221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544410.

The product of its digits is 864, while the sum is 21.

The square root of 4633221 is about 2152.4918118311. The cubic root of 4633221 is about 166.7097519721.

Adding to 4633221 its reverse (1223364), we get a palindrome (5856585).

The spelling of 4633221 in words is "four million, six hundred thirty-three thousand, two hundred twenty-one".