13307809 has 8 divisors (see below), whose sum is σ = 14097440. Its totient is φ = 12527136.

The previous prime is 13307807. The next prime is 13307813. The reversal of 13307809 is 90870331.

13307809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13307809 - 2¹ = 13307807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13307803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949 + ... + 5245.

It is an arithmetic number, because the mean of its divisors is an integer number (1762180).

Almost surely, 2^13307809 is an apocalyptic number.

13307809 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13307809 is a deficient number, since it is larger than the sum of its proper divisors (789631).

13307809 is a wasteful number, since it uses less digits than its factorization.

13307809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4479.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13307809 is about 3647.9869791434. The cubic root of 13307809 is about 236.9748114257.

The spelling of 13307809 in words is "thirteen million, three hundred seven thousand, eight hundred nine".