3272521 has 4 divisors (see below), whose sum is σ = 3740032. Its totient is φ = 2805012.

The previous prime is 3272491. The next prime is 3272527. The reversal of 3272521 is 1252723.

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: 1252723 = 197 ⋅6359.

It is a de Polignac number, because none of the positive numbers 2^k-3272521 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

3272521 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3272492 and 3272501.

It is not an unprimeable number, because it can be changed into a prime (3272527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 233745 + ... + 233758.

It is an arithmetic number, because the mean of its divisors is an integer number (935008).

Almost surely, 2^3272521 is an apocalyptic number.

It is an amenable number.

3272521 is a deficient number, since it is larger than the sum of its proper divisors (467511).

3272521 is an equidigital number, since it uses as much as digits as its factorization.

3272521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467510.

The product of its digits is 840, while the sum is 22.

The square root of 3272521 is about 1809.0110557982. The cubic root of 3272521 is about 148.4661616528.

The spelling of 3272521 in words is "three million, two hundred seventy-two thousand, five hundred twenty-one".