3521443 has 4 divisors (see below), whose sum is σ = 3529000. Its totient is φ = 3513888.

The previous prime is 3521437. The next prime is 3521473. The reversal of 3521443 is 3441253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3441253 = 41 ⋅83933.

It is a cyclic number.

It is not a de Polignac number, because 3521443 - 2¹⁷ = 3390371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3521473) 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, 3030 + ... + 4027.

It is an arithmetic number, because the mean of its divisors is an integer number (882250).

Almost surely, 2^3521443 is an apocalyptic number.

3521443 is a deficient number, since it is larger than the sum of its proper divisors (7557).

3521443 is an equidigital number, since it uses as much as digits as its factorization.

3521443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556.

The product of its digits is 1440, while the sum is 22.

The square root of 3521443 is about 1876.5508253176. The cubic root of 3521443 is about 152.1388821831.

Adding to 3521443 its reverse (3441253), we get a palindrome (6962696).

The spelling of 3521443 in words is "three million, five hundred twenty-one thousand, four hundred forty-three".