13924 has 9 divisors (see below), whose sum is σ = 24787.
Its totient is φ = 6844.
The previous prime is 13921. The next prime is 13931. The reversal of 13924 is 42931.
13924 = T117 + T118.
The square root of 13924 is 118.
It is a perfect power (a square), and thus also a powerful number.
13924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Duffinian number.
It is a nialpdrome in base 7.
It is not an unprimeable number, because it can be changed into a prime (13921) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 207 + ... + 265.
213924 is an apocalyptic number.
13924 is the 118-th square number.
It is an amenable number.
13924 is a deficient number, since it is larger than the sum of its proper divisors (10863).
13924 is an equidigital number, since it uses as much as digits as its factorization.
13924 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 122 (or 61 counting only the distinct ones).
The product of its digits is 216, while the sum is 19.
The cubic root of 13924 is about 24.0577313876.
The spelling of 13924 in words is "thirteen thousand, nine hundred twenty-four".