13782866 has 8 divisors (see below), whose sum is σ = 21762480. Its totient is φ = 6528708.

The previous prime is 13782863. The next prime is 13782877. The reversal of 13782866 is 66828731.

It is a happy number.

13782866 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 (13782863) 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, 181316 + ... + 181391.

It is an arithmetic number, because the mean of its divisors is an integer number (2720310).

Almost surely, 2^13782866 is an apocalyptic number.

13782866 is a deficient number, since it is larger than the sum of its proper divisors (7979614).

13782866 is a wasteful number, since it uses less digits than its factorization.

13782866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362728.

The product of its digits is 96768, while the sum is 41.

The square root of 13782866 is about 3712.5282490508. The cubic root of 13782866 is about 239.7617195235.

The spelling of 13782866 in words is "thirteen million, seven hundred eighty-two thousand, eight hundred sixty-six".