3252221 has 4 divisors (see below), whose sum is σ = 3716832. Its totient is φ = 2787612.

The previous prime is 3252217. The next prime is 3252281. The reversal of 3252221 is 1222523.

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 a cyclic number.

It is not a de Polignac number, because 3252221 - 2² = 3252217 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3252221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3252281) 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, 232295 + ... + 232308.

It is an arithmetic number, because the mean of its divisors is an integer number (929208).

Almost surely, 2^3252221 is an apocalyptic number.

It is an amenable number.

3252221 is a deficient number, since it is larger than the sum of its proper divisors (464611).

3252221 is an equidigital number, since it uses as much as digits as its factorization.

3252221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464610.

The product of its digits is 240, while the sum is 17.

The square root of 3252221 is about 1803.3915270955. The cubic root of 3252221 is about 148.1585378076.

Adding to 3252221 its reverse (1222523), we get a palindrome (4474744).

The spelling of 3252221 in words is "three million, two hundred fifty-two thousand, two hundred twenty-one".