13899329 has 2 divisors, whose sum is σ = 13899330. Its totient is φ = 13899328.

The previous prime is 13899311. The next prime is 13899341. The reversal of 13899329 is 92399831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12588304 + 1311025 = 3548^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 13899329 - 2⁸ = 13899073 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13899329.

It is not a weakly prime, because it can be changed into another prime (13899349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6949664 + 6949665.

It is an arithmetic number, because the mean of its divisors is an integer number (6949665).

Almost surely, 2^13899329 is an apocalyptic number.

It is an amenable number.

13899329 is a deficient number, since it is larger than the sum of its proper divisors (1).

13899329 is an equidigital number, since it uses as much as digits as its factorization.

13899329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 104976, while the sum is 44.

The square root of 13899329 is about 3728.1803872667. The cubic root of 13899329 is about 240.4351422828.

The spelling of 13899329 in words is "thirteen million, eight hundred ninety-nine thousand, three hundred twenty-nine".