13938433 has 4 divisors (see below), whose sum is σ = 13949908. Its totient is φ = 13926960.

The previous prime is 13938409. The next prime is 13938451. The reversal of 13938433 is 33483931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6718464 + 7219969 = 2592^2 + 2687^2 .

It is a cyclic number.

It is not a de Polignac number, because 13938433 - 2⁹ = 13937921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13938403) 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, 3666 + ... + 6427.

It is an arithmetic number, because the mean of its divisors is an integer number (3487477).

Almost surely, 2^13938433 is an apocalyptic number.

It is an amenable number.

13938433 is a deficient number, since it is larger than the sum of its proper divisors (11475).

13938433 is a wasteful number, since it uses less digits than its factorization.

13938433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11474.

The product of its digits is 23328, while the sum is 34.

The square root of 13938433 is about 3733.4210852782. The cubic root of 13938433 is about 240.6604090917.

The spelling of 13938433 in words is "thirteen million, nine hundred thirty-eight thousand, four hundred thirty-three".