13966671 has 8 divisors (see below), whose sum is σ = 18640384. Its totient is φ = 9302040.

The previous prime is 13966669. The next prime is 13966679. The reversal of 13966671 is 17666931.

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

It is not a de Polignac number, because 13966671 - 2¹ = 13966669 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 (13966679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3216 + ... + 6186.

It is an arithmetic number, because the mean of its divisors is an integer number (2330048).

Almost surely, 2^13966671 is an apocalyptic number.

13966671 is a deficient number, since it is larger than the sum of its proper divisors (4673713).

13966671 is a wasteful number, since it uses less digits than its factorization.

13966671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541.

The product of its digits is 40824, while the sum is 39.

The square root of 13966671 is about 3737.2009579363. The cubic root of 13966671 is about 240.8228181800.

The spelling of 13966671 in words is "thirteen million, nine hundred sixty-six thousand, six hundred seventy-one".