3320643 has 4 divisors (see below), whose sum is σ = 4427528. Its totient is φ = 2213760.

The previous prime is 3320623. The next prime is 3320651. The reversal of 3320643 is 3460233.

3320643 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.

It is not a de Polignac number, because 3320643 - 2¹⁰ = 3319619 is a prime.

It is a super-2 number, since 2×3320643² = 22053339866898, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3320623) 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, 553438 + ... + 553443.

It is an arithmetic number, because the mean of its divisors is an integer number (1106882).

Almost surely, 2^3320643 is an apocalyptic number.

3320643 is a deficient number, since it is larger than the sum of its proper divisors (1106885).

3320643 is a wasteful number, since it uses less digits than its factorization.

3320643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106884.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 3320643 is about 1822.2631533343. The cubic root of 3320643 is about 149.1903487397.

Adding to 3320643 its reverse (3460233), we get a palindrome (6780876).

The spelling of 3320643 in words is "three million, three hundred twenty thousand, six hundred forty-three".