13618678 has 16 divisors (see below), whose sum is σ = 20790000. Its totient is φ = 6689952.

The previous prime is 13618667. The next prime is 13618679. The reversal of 13618678 is 87681631.

It is a self number, because there is not a number n which added to its sum of digits gives 13618678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13618679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38848 + ... + 39196.

It is an arithmetic number, because the mean of its divisors is an integer number (1299375).

Almost surely, 2^13618678 is an apocalyptic number.

13618678 is a deficient number, since it is larger than the sum of its proper divisors (7171322).

13618678 is a wasteful number, since it uses less digits than its factorization.

13618678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639.

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

The square root of 13618678 is about 3690.3493059601. The cubic root of 13618678 is about 238.8058623156.

The spelling of 13618678 in words is "thirteen million, six hundred eighteen thousand, six hundred seventy-eight".