13678807 has 4 divisors (see below), whose sum is σ = 14150520. Its totient is φ = 13207096.

The previous prime is 13678783. The next prime is 13678811. The reversal of 13678807 is 70887631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70887631 = 5791 ⋅12241.

It is a cyclic number.

It is not a de Polignac number, because 13678807 - 2¹¹ = 13676759 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13678807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13678817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235813 + ... + 235870.

It is an arithmetic number, because the mean of its divisors is an integer number (3537630).

Almost surely, 2^13678807 is an apocalyptic number.

13678807 is a deficient number, since it is larger than the sum of its proper divisors (471713).

13678807 is an equidigital number, since it uses as much as digits as its factorization.

13678807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471712.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 13678807 is about 3698.4871231356. The cubic root of 13678807 is about 239.1568037847.

The spelling of 13678807 in words is "thirteen million, six hundred seventy-eight thousand, eight hundred seven".