3529221 has 4 divisors (see below), whose sum is σ = 4705632. Its totient is φ = 2352812.

The previous prime is 3529219. The next prime is 3529241. The reversal of 3529221 is 1229253.

3529221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3529221 - 2¹ = 3529219 is a prime.

It is a D-number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 3529191 and 3529200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3529241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 588201 + ... + 588206.

It is an arithmetic number, because the mean of its divisors is an integer number (1176408).

Almost surely, 2^3529221 is an apocalyptic number.

It is an amenable number.

3529221 is a deficient number, since it is larger than the sum of its proper divisors (1176411).

3529221 is a wasteful number, since it uses less digits than its factorization.

3529221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176410.

The product of its digits is 1080, while the sum is 24.

The square root of 3529221 is about 1878.6221014350. The cubic root of 3529221 is about 152.2508122508.

Subtracting from 3529221 its reverse (1229253), we obtain a cube (2299968 = 132³).

The spelling of 3529221 in words is "three million, five hundred twenty-nine thousand, two hundred twenty-one".