3243818 has 4 divisors (see below), whose sum is σ = 4865730. Its totient is φ = 1621908.

The previous prime is 3243811. The next prime is 3243833. The reversal of 3243818 is 8183423.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 2798929 + 444889 = 1673^2 + 667^2 .

It is not an unprimeable number, because it can be changed into a prime (3243811) 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 as a sum of consecutive naturals, namely, 810953 + ... + 810956.

Almost surely, 2^3243818 is an apocalyptic number.

3243818 is a deficient number, since it is larger than the sum of its proper divisors (1621912).

3243818 is a wasteful number, since it uses less digits than its factorization.

3243818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621911.

The product of its digits is 4608, while the sum is 29.

The square root of 3243818 is about 1801.0602433012. The cubic root of 3243818 is about 148.0308250866.

The spelling of 3243818 in words is "three million, two hundred forty-three thousand, eight hundred eighteen".