13683856 has 10 divisors (see below), whose sum is σ = 26512502. Its totient is φ = 6841920.

The previous prime is 13683841. The next prime is 13683877. The reversal of 13683856 is 65838631.

It can be written as a sum of positive squares in only one way, i.e., 13075456 + 608400 = 3616^2 + 780^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427605 + ... + 427636.

Almost surely, 2^13683856 is an apocalyptic number.

13683856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13683856 is a deficient number, since it is larger than the sum of its proper divisors (12828646).

13683856 is an equidigital number, since it uses as much as digits as its factorization.

13683856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855249 (or 855243 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 13683856 is about 3699.1696365536. The cubic root of 13683856 is about 239.1862253116.

The spelling of 13683856 in words is "thirteen million, six hundred eighty-three thousand, eight hundred fifty-six".