13681678 has 8 divisors (see below), whose sum is σ = 21230280. Its totient is φ = 6604920.

The previous prime is 13681673. The next prime is 13681693. The reversal of 13681678 is 87618631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13681678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13681673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117888 + ... + 118003.

It is an arithmetic number, because the mean of its divisors is an integer number (2653785).

Almost surely, 2^13681678 is an apocalyptic number.

13681678 is a deficient number, since it is larger than the sum of its proper divisors (7548602).

13681678 is a wasteful number, since it uses less digits than its factorization.

13681678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235922.

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

The square root of 13681678 is about 3698.8752344463. The cubic root of 13681678 is about 239.1735345603.

The spelling of 13681678 in words is "thirteen million, six hundred eighty-one thousand, six hundred seventy-eight".