13926971 has 4 divisors (see below), whose sum is σ = 14155344. Its totient is φ = 13698600.

The previous prime is 13926959. The next prime is 13926977. The reversal of 13926971 is 17962931.

It is a happy number.

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 13926971 - 2⁶ = 13926907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13926977) 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 3 ways as a sum of consecutive naturals, for example, 114095 + ... + 114216.

It is an arithmetic number, because the mean of its divisors is an integer number (3538836).

Almost surely, 2^13926971 is an apocalyptic number.

13926971 is a deficient number, since it is larger than the sum of its proper divisors (228373).

13926971 is an equidigital number, since it uses as much as digits as its factorization.

13926971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228372.

The product of its digits is 20412, while the sum is 38.

The square root of 13926971 is about 3731.8857163638. The cubic root of 13926971 is about 240.5944235281.

The spelling of 13926971 in words is "thirteen million, nine hundred twenty-six thousand, nine hundred seventy-one".