3233521 has 2 divisors, whose sum is σ = 3233522. Its totient is φ = 3233520.

The previous prime is 3233509. The next prime is 3233533. The reversal of 3233521 is 1253323.

It is a balanced prime because it is at equal distance from previous prime (3233509) and next prime (3233533).

It can be written as a sum of positive squares in only one way, i.e., 2359296 + 874225 = 1536^2 + 935^2 .

It is an emirp because it is prime and its reverse (1253323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3233521 - 2¹³ = 3225329 is a prime.

It is a Chen prime.

3233521 is a lucky number.

It is equal to p₂₃₂₄₈₀ and since 3233521 and 232480 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3233561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1616760 + 1616761.

It is an arithmetic number, because the mean of its divisors is an integer number (1616761).

Almost surely, 2^3233521 is an apocalyptic number.

It is an amenable number.

3233521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3233521 is an equidigital number, since it uses as much as digits as its factorization.

3233521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 19.

The square root of 3233521 is about 1798.1993771548. The cubic root of 3233521 is about 147.8740253819.

Adding to 3233521 its reverse (1253323), we get a palindrome (4486844).

It can be divided in two parts, 323 and 3521, that added together give a square (3844 = 62²).

The spelling of 3233521 in words is "three million, two hundred thirty-three thousand, five hundred twenty-one".