13971694 has 16 divisors (see below), whose sum is σ = 22947120. Its totient is φ = 6327360.

The previous prime is 13971667. The next prime is 13971697. The reversal of 13971694 is 49617931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13971697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5872 + ... + 7900.

It is an arithmetic number, because the mean of its divisors is an integer number (1434195).

Almost surely, 2^13971694 is an apocalyptic number.

13971694 is a deficient number, since it is larger than the sum of its proper divisors (8975426).

13971694 is a wasteful number, since it uses less digits than its factorization.

13971694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355.

The product of its digits is 40824, while the sum is 40.

The square root of 13971694 is about 3737.8729245388. The cubic root of 13971694 is about 240.8516847111.

The spelling of 13971694 in words is "thirteen million, nine hundred seventy-one thousand, six hundred ninety-four".