13682815 has 16 divisors (see below), whose sum is σ = 17538048. Its totient is φ = 10223136.

The previous prime is 13682813. The next prime is 13682821. The reversal of 13682815 is 51828631.

It is a cyclic number.

It is not a de Polignac number, because 13682815 - 2¹ = 13682813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13682813) 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 15 ways as a sum of consecutive naturals, for example, 3562 + ... + 6328.

It is an arithmetic number, because the mean of its divisors is an integer number (1096128).

Almost surely, 2^13682815 is an apocalyptic number.

13682815 is a deficient number, since it is larger than the sum of its proper divisors (3855233).

13682815 is a wasteful number, since it uses less digits than its factorization.

13682815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2838.

The product of its digits is 11520, while the sum is 34.

The square root of 13682815 is about 3699.0289266239. The cubic root of 13682815 is about 239.1801597900.

The spelling of 13682815 in words is "thirteen million, six hundred eighty-two thousand, eight hundred fifteen".