13938329 has 2 divisors, whose sum is σ = 13938330. Its totient is φ = 13938328.

The previous prime is 13938289. The next prime is 13938347. The reversal of 13938329 is 92383931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7425625 + 6512704 = 2725^2 + 2552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13938329 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13938292 and 13938301.

It is not a weakly prime, because it can be changed into another prime (13938349) 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 as a sum of consecutive naturals, namely, 6969164 + 6969165.

It is an arithmetic number, because the mean of its divisors is an integer number (6969165).

Almost surely, 2^13938329 is an apocalyptic number.

It is an amenable number.

13938329 is a deficient number, since it is larger than the sum of its proper divisors (1).

13938329 is an equidigital number, since it uses as much as digits as its factorization.

13938329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 38.

The square root of 13938329 is about 3733.4071570082. The cubic root of 13938329 is about 240.6598105370.

The spelling of 13938329 in words is "thirteen million, nine hundred thirty-eight thousand, three hundred twenty-nine".