13868329 has 2 divisors, whose sum is σ = 13868330. Its totient is φ = 13868328.

The previous prime is 13868297. The next prime is 13868339. The reversal of 13868329 is 92386831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13838400 + 29929 = 3720^2 + 173^2 .

It is a cyclic number.

It is not a de Polignac number, because 13868329 - 2⁵ = 13868297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13868291 and 13868300.

It is not a weakly prime, because it can be changed into another prime (13868339) 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, 6934164 + 6934165.

It is an arithmetic number, because the mean of its divisors is an integer number (6934165).

Almost surely, 2^13868329 is an apocalyptic number.

It is an amenable number.

13868329 is a deficient number, since it is larger than the sum of its proper divisors (1).

13868329 is an equidigital number, since it uses as much as digits as its factorization.

13868329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 13868329 is about 3724.0205423708. The cubic root of 13868329 is about 240.2562598461.

The spelling of 13868329 in words is "thirteen million, eight hundred sixty-eight thousand, three hundred twenty-nine".