3213443 has 4 divisors (see below), whose sum is σ = 3274128. Its totient is φ = 3152760.

The previous prime is 3213439. The next prime is 3213473. The reversal of 3213443 is 3443123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3213443 - 2² = 3213439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3213473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30263 + ... + 30368.

It is an arithmetic number, because the mean of its divisors is an integer number (818532).

Almost surely, 2^3213443 is an apocalyptic number.

3213443 is a deficient number, since it is larger than the sum of its proper divisors (60685).

3213443 is an equidigital number, since it uses as much as digits as its factorization.

3213443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60684.

The product of its digits is 864, while the sum is 20.

The square root of 3213443 is about 1792.6078768096. The cubic root of 3213443 is about 147.5673234754.

Adding to 3213443 its reverse (3443123), we get a palindrome (6656566).

The spelling of 3213443 in words is "three million, two hundred thirteen thousand, four hundred forty-three".