3235221 has 20 divisors (see below), whose sum is σ = 5273664. Its totient is φ = 1960200.

The previous prime is 3235217. The next prime is 3235223. The reversal of 3235221 is 1225323.

Added to its reverse (1225323) it gives a square (4460544 = 2112²).

It is not a de Polignac number, because 3235221 - 2² = 3235217 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3235194 and 3235203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3235223) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 925 + ... + 2706.

Almost surely, 2^3235221 is an apocalyptic number.

It is an amenable number.

3235221 is a deficient number, since it is larger than the sum of its proper divisors (2038443).

3235221 is a wasteful number, since it uses less digits than its factorization.

3235221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3654 (or 3645 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 3235221 is about 1798.6720101230. The cubic root of 3235221 is about 147.8999354039.

Adding to 3235221 its reverse (1225323), we get a square (4460544 = 2112²).

It can be divided in two parts, 32 and 35221, that added together give a palindrome (35253).

The spelling of 3235221 in words is "three million, two hundred thirty-five thousand, two hundred twenty-one".