3243993 has 4 divisors (see below), whose sum is σ = 4325328. Its totient is φ = 2162660.

The previous prime is 3243983. The next prime is 3244001. The reversal of 3243993 is 3993423.

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 3243993 - 2¹⁰ = 3242969 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3243973) 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, 540663 + ... + 540668.

It is an arithmetic number, because the mean of its divisors is an integer number (1081332).

Almost surely, 2^3243993 is an apocalyptic number.

It is an amenable number.

3243993 is a deficient number, since it is larger than the sum of its proper divisors (1081335).

3243993 is a wasteful number, since it uses less digits than its factorization.

3243993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081334.

The product of its digits is 17496, while the sum is 33.

The square root of 3243993 is about 1801.1088251408. The cubic root of 3243993 is about 148.0334870658.

The spelling of 3243993 in words is "three million, two hundred forty-three thousand, nine hundred ninety-three".