13867666 has 8 divisors (see below), whose sum is σ = 21705984. Its totient is φ = 6632340.

The previous prime is 13867661. The next prime is 13867669. The reversal of 13867666 is 66676831.

13867666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (13867661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150690 + ... + 150781.

It is an arithmetic number, because the mean of its divisors is an integer number (2713248).

Almost surely, 2^13867666 is an apocalyptic number.

13867666 is a deficient number, since it is larger than the sum of its proper divisors (7838318).

13867666 is a wasteful number, since it uses less digits than its factorization.

13867666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301496.

The product of its digits is 217728, while the sum is 43.

The square root of 13867666 is about 3723.9315246121. The cubic root of 13867666 is about 240.2524311600.

The spelling of 13867666 in words is "thirteen million, eight hundred sixty-seven thousand, six hundred sixty-six".