13659816 has 16 divisors (see below), whose sum is σ = 34149600. Its totient is φ = 4553264.

The previous prime is 13659773. The next prime is 13659817. The reversal of 13659816 is 61895631.

It is not an unprimeable number, because it can be changed into a prime (13659817) 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 3 ways as a sum of consecutive naturals, for example, 284556 + ... + 284603.

It is an arithmetic number, because the mean of its divisors is an integer number (2134350).

Almost surely, 2^13659816 is an apocalyptic number.

It is an amenable number.

13659816 is an abundant number, since it is smaller than the sum of its proper divisors (20489784).

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

13659816 is a wasteful number, since it uses less digits than its factorization.

13659816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569168 (or 569164 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 13659816 is about 3695.9188302775. The cubic root of 13659816 is about 239.0460745774.

The spelling of 13659816 in words is "thirteen million, six hundred fifty-nine thousand, eight hundred sixteen".