13760809 has 2 divisors, whose sum is σ = 13760810. Its totient is φ = 13760808.

The previous prime is 13760797. The next prime is 13760821. The reversal of 13760809 is 90806731.

It is a balanced prime because it is at equal distance from previous prime (13760797) and next prime (13760821).

It can be written as a sum of positive squares in only one way, i.e., 11594025 + 2166784 = 3405^2 + 1472^2 .

It is a cyclic number.

It is not a de Polignac number, because 13760809 - 2⁵ = 13760777 is a prime.

It is not a weakly prime, because it can be changed into another prime (13760899) 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, 6880404 + 6880405.

It is an arithmetic number, because the mean of its divisors is an integer number (6880405).

Almost surely, 2^13760809 is an apocalyptic number.

It is an amenable number.

13760809 is a deficient number, since it is larger than the sum of its proper divisors (1).

13760809 is an equidigital number, since it uses as much as digits as its factorization.

13760809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 13760809 is about 3709.5564424874. The cubic root of 13760809 is about 239.6337527224.

The spelling of 13760809 in words is "thirteen million, seven hundred sixty thousand, eight hundred nine".