13832809 has 2 divisors, whose sum is σ = 13832810. Its totient is φ = 13832808.

The previous prime is 13832807. The next prime is 13832831. The reversal of 13832809 is 90823831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13505625 + 327184 = 3675^2 + 572^2 .

It is a cyclic number.

It is not a de Polignac number, because 13832809 - 2¹ = 13832807 is a prime.

Together with 13832807, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13832803) 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 as a sum of consecutive naturals, namely, 6916404 + 6916405.

It is an arithmetic number, because the mean of its divisors is an integer number (6916405).

Almost surely, 2^13832809 is an apocalyptic number.

It is an amenable number.

13832809 is a deficient number, since it is larger than the sum of its proper divisors (1).

13832809 is an equidigital number, since it uses as much as digits as its factorization.

13832809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 13832809 is about 3719.2484455868. The cubic root of 13832809 is about 240.0509671849.

It can be divided in two parts, 13832 and 809, that added together give a palindrome (14641).

The spelling of 13832809 in words is "thirteen million, eight hundred thirty-two thousand, eight hundred nine".