13786816 has 28 divisors (see below), whose sum is σ = 28244800. Its totient is φ = 6670080.

The previous prime is 13786811. The next prime is 13786819. The reversal of 13786816 is 61868731.

It is not an unprimeable number, because it can be changed into a prime (13786811) 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, 1491 + ... + 5458.

Almost surely, 2^13786816 is an apocalyptic number.

13786816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13786816 is an abundant number, since it is smaller than the sum of its proper divisors (14457984).

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

13786816 is an equidigital number, since it uses as much as digits as its factorization.

13786816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6992 (or 6982 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 13786816 is about 3713.0601934254. The cubic root of 13786816 is about 239.7846215899.

The spelling of 13786816 in words is "thirteen million, seven hundred eighty-six thousand, eight hundred sixteen".