13808503 has 2 divisors, whose sum is σ = 13808504. Its totient is φ = 13808502.

The previous prime is 13808491. The next prime is 13808507. The reversal of 13808503 is 30580831.

It is a strong prime.

It is an emirp because it is prime and its reverse (30580831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13808503 - 2⁹ = 13807991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13808507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6904251 + 6904252.

It is an arithmetic number, because the mean of its divisors is an integer number (6904252).

Almost surely, 2^13808503 is an apocalyptic number.

13808503 is a deficient number, since it is larger than the sum of its proper divisors (1).

13808503 is an equidigital number, since it uses as much as digits as its factorization.

13808503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 13808503 is about 3715.9794132907. The cubic root of 13808503 is about 239.9102847544.

The spelling of 13808503 in words is "thirteen million, eight hundred eight thousand, five hundred three".