13668567 has 8 divisors (see below), whose sum is σ = 19881600. Its totient is φ = 8283960.

The previous prime is 13668563. The next prime is 13668569. The reversal of 13668567 is 76586631.

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

It is not a de Polignac number, because 13668567 - 2² = 13668563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13668563) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 207067 + ... + 207132.

It is an arithmetic number, because the mean of its divisors is an integer number (2485200).

Almost surely, 2^13668567 is an apocalyptic number.

13668567 is a deficient number, since it is larger than the sum of its proper divisors (6213033).

13668567 is a wasteful number, since it uses less digits than its factorization.

13668567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414213.

The product of its digits is 181440, while the sum is 42.

The square root of 13668567 is about 3697.1025141318. The cubic root of 13668567 is about 239.0971110297.

The spelling of 13668567 in words is "thirteen million, six hundred sixty-eight thousand, five hundred sixty-seven".