13809303 has 12 divisors (see below), whose sum is σ = 20245368. Its totient is φ = 9068400.

The previous prime is 13809293. The next prime is 13809311. The reversal of 13809303 is 30390831.

It is not a de Polignac number, because 13809303 - 2⁹ = 13808791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13809373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10848 + ... + 12053.

It is an arithmetic number, because the mean of its divisors is an integer number (1687114).

Almost surely, 2^13809303 is an apocalyptic number.

13809303 is a deficient number, since it is larger than the sum of its proper divisors (6436065).

13809303 is a wasteful number, since it uses less digits than its factorization.

13809303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22974 (or 22971 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 13809303 is about 3716.0870549544. The cubic root of 13809303 is about 239.9149177578.

The spelling of 13809303 in words is "thirteen million, eight hundred nine thousand, three hundred three".