13934221 has 16 divisors (see below), whose sum is σ = 16583680. Its totient is φ = 11456640.

The previous prime is 13934209. The next prime is 13934227. The reversal of 13934221 is 12243931.

It is a cyclic number.

It is not a de Polignac number, because 13934221 - 2⁵ = 13934189 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 (13934227) 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 15 ways as a sum of consecutive naturals, for example, 33865 + ... + 34273.

It is an arithmetic number, because the mean of its divisors is an integer number (1036480).

Almost surely, 2^13934221 is an apocalyptic number.

It is an amenable number.

13934221 is a deficient number, since it is larger than the sum of its proper divisors (2649459).

13934221 is a wasteful number, since it uses less digits than its factorization.

13934221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604.

The product of its digits is 1296, while the sum is 25.

The square root of 13934221 is about 3732.8569487726. The cubic root of 13934221 is about 240.6361652434.

The spelling of 13934221 in words is "thirteen million, nine hundred thirty-four thousand, two hundred twenty-one".