13568216 has 8 divisors (see below), whose sum is σ = 25440420. Its totient is φ = 6784104.

The previous prime is 13568213. The next prime is 13568221. The reversal of 13568216 is 61286531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13568213) 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 as a sum of consecutive naturals, namely, 848006 + ... + 848021.

Almost surely, 2^13568216 is an apocalyptic number.

It is an amenable number.

13568216 is a deficient number, since it is larger than the sum of its proper divisors (11872204).

13568216 is a wasteful number, since it uses less digits than its factorization.

13568216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696033 (or 1696029 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 13568216 is about 3683.5059386405. The cubic root of 13568216 is about 238.5105439773.

The spelling of 13568216 in words is "thirteen million, five hundred sixty-eight thousand, two hundred sixteen".