13668895 has 4 divisors (see below), whose sum is σ = 16402680. Its totient is φ = 10935112.

The previous prime is 13668881. The next prime is 13668911. The reversal of 13668895 is 59886631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13668895 - 2¹¹ = 13666847 is a prime.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1366885 + ... + 1366894.

It is an arithmetic number, because the mean of its divisors is an integer number (4100670).

Almost surely, 2^13668895 is an apocalyptic number.

13668895 is a deficient number, since it is larger than the sum of its proper divisors (2733785).

13668895 is an equidigital number, since it uses as much as digits as its factorization.

13668895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733784.

The product of its digits is 311040, while the sum is 46.

The square root of 13668895 is about 3697.1468729278. The cubic root of 13668895 is about 239.0990235253.

The spelling of 13668895 in words is "thirteen million, six hundred sixty-eight thousand, eight hundred ninety-five".