13376809 has 4 divisors (see below), whose sum is σ = 13384404. Its totient is φ = 13369216.

The previous prime is 13376791. The next prime is 13376851. The reversal of 13376809 is 90867331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90867331 = 5881 ⋅15451.

It can be written as a sum of positive squares in 2 ways, for example, as 1625625 + 11751184 = 1275^2 + 3428^2 .

It is a cyclic number.

It is not a de Polignac number, because 13376809 - 2¹⁵ = 13344041 is a prime.

It is a super-3 number, since 3×13376809³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13376309) 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 in 3 ways as a sum of consecutive naturals, for example, 369 + ... + 5185.

It is an arithmetic number, because the mean of its divisors is an integer number (3346101).

Almost surely, 2^13376809 is an apocalyptic number.

It is an amenable number.

13376809 is a deficient number, since it is larger than the sum of its proper divisors (7595).

13376809 is an equidigital number, since it uses as much as digits as its factorization.

13376809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7594.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 13376809 is about 3657.4320226082. The cubic root of 13376809 is about 237.3836711933.

The spelling of 13376809 in words is "thirteen million, three hundred seventy-six thousand, eight hundred nine".