3331643 has 8 divisors (see below), whose sum is σ = 4031712. Its totient is φ = 2687616.

The previous prime is 3331639. The next prime is 3331649. The reversal of 3331643 is 3461333.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3331643 - 2² = 3331639 is a prime.

It is a super-2 number, since 2×3331643² = 22199690158898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3331649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13880 + ... + 14117.

It is an arithmetic number, because the mean of its divisors is an integer number (503964).

Almost surely, 2^3331643 is an apocalyptic number.

3331643 is a deficient number, since it is larger than the sum of its proper divisors (700069).

3331643 is a wasteful number, since it uses less digits than its factorization.

3331643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28021.

The product of its digits is 1944, while the sum is 23.

The square root of 3331643 is about 1825.2788828012. The cubic root of 3331643 is about 149.3549037232.

Adding to 3331643 its reverse (3461333), we get a palindrome (6792976).

The spelling of 3331643 in words is "three million, three hundred thirty-one thousand, six hundred forty-three".