3243664 has 10 divisors (see below), whose sum is σ = 6284630. Its totient is φ = 1621824.

The previous prime is 3243649. The next prime is 3243677. The reversal of 3243664 is 4663423.

3243664 is nontrivially palindromic in base 15.

3243664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3211264 + 32400 = 1792^2 + 180^2 .

It is a super-2 number, since 2×3243664² = 21042712289792, which contains 22 as substring.

It is a zygodrome in base 15.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 101349 + ... + 101380.

It is an arithmetic number, because the mean of its divisors is an integer number (628463).

Almost surely, 2^3243664 is an apocalyptic number.

It is an amenable number.

3243664 is a deficient number, since it is larger than the sum of its proper divisors (3040966).

3243664 is a wasteful number, since it uses less digits than its factorization.

3243664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202737 (or 202731 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

The square root of 3243664 is about 1801.0174901982. The cubic root of 3243664 is about 148.0284824656.

The spelling of 3243664 in words is "three million, two hundred forty-three thousand, six hundred sixty-four".