13716681 has 24 divisors (see below), whose sum is σ = 20811840. Its totient is φ = 8020320.

The previous prime is 13716679. The next prime is 13716701. The reversal of 13716681 is 18661731.

It is not a de Polignac number, because 13716681 - 2¹ = 13716679 is a prime.

It is a super-2 number, since 2×13716681² = 376294675311522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13716611) 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 23 ways as a sum of consecutive naturals, for example, 9876 + ... + 11178.

It is an arithmetic number, because the mean of its divisors is an integer number (867160).

Almost surely, 2^13716681 is an apocalyptic number.

13716681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13716681 is a deficient number, since it is larger than the sum of its proper divisors (7095159).

13716681 is a wasteful number, since it uses less digits than its factorization.

13716681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357 (or 1346 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 13716681 is about 3703.6037855041. The cubic root of 13716681 is about 239.3773268617.

The spelling of 13716681 in words is "thirteen million, seven hundred sixteen thousand, six hundred eighty-one".