13809583 has 2 divisors, whose sum is σ = 13809584. Its totient is φ = 13809582.

The previous prime is 13809569. The next prime is 13809589. The reversal of 13809583 is 38590831.

It is a strong prime.

It is an emirp because it is prime and its reverse (38590831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13809583 - 2⁹ = 13809071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13809589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6904791 + 6904792.

It is an arithmetic number, because the mean of its divisors is an integer number (6904792).

Almost surely, 2^13809583 is an apocalyptic number.

13809583 is a deficient number, since it is larger than the sum of its proper divisors (1).

13809583 is an equidigital number, since it uses as much as digits as its factorization.

13809583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 13809583 is about 3716.1247288002. The cubic root of 13809583 is about 239.9165392667.

The spelling of 13809583 in words is "thirteen million, eight hundred nine thousand, five hundred eighty-three".