3663216 has 30 divisors (see below), whose sum is σ = 10252320. Its totient is φ = 1221024.

The previous prime is 3663203. The next prime is 3663217. The reversal of 3663216 is 6123663.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 3663216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3663217) 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 5 ways as a sum of consecutive naturals, for example, 12576 + ... + 12863.

It is an arithmetic number, because the mean of its divisors is an integer number (341744).

Almost surely, 2^3663216 is an apocalyptic number.

3663216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3663216 is an abundant number, since it is smaller than the sum of its proper divisors (6589104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3663216 is a wasteful number, since it uses less digits than its factorization.

3663216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25453 (or 25444 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 3663216 is about 1913.9529774788. The cubic root of 3663216 is about 154.1537790379.

Adding to 3663216 its reverse (6123663), we get a palindrome (9786879).

The spelling of 3663216 in words is "three million, six hundred sixty-three thousand, two hundred sixteen".