3213663 has 16 divisors (see below), whose sum is σ = 4615776. Its totient is φ = 1981440.

The previous prime is 3213659. The next prime is 3213689. The reversal of 3213663 is 3663123.

3213663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3213663 - 2² = 3213659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3213163) 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 15 ways as a sum of consecutive naturals, for example, 2595 + ... + 3627.

It is an arithmetic number, because the mean of its divisors is an integer number (288486).

Almost surely, 2^3213663 is an apocalyptic number.

3213663 is a deficient number, since it is larger than the sum of its proper divisors (1402113).

3213663 is a wasteful number, since it uses less digits than its factorization.

3213663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114.

The product of its digits is 1944, while the sum is 24.

The square root of 3213663 is about 1792.6692388726. The cubic root of 3213663 is about 147.5706910026.

Adding to 3213663 its reverse (3663123), we get a palindrome (6876786).

It can be divided in two parts, 32 and 13663, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 3213663 in words is "three million, two hundred thirteen thousand, six hundred sixty-three".