13287803 has 4 divisors (see below), whose sum is σ = 13513080. Its totient is φ = 13062528.

The previous prime is 13287797. The next prime is 13287811. The reversal of 13287803 is 30878231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30878231 = 163 ⋅189437.

It is a cyclic number.

It is not a de Polignac number, because 13287803 - 2⁴ = 13287787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13287803.

It is not an unprimeable number, because it can be changed into a prime (13287823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112550 + ... + 112667.

It is an arithmetic number, because the mean of its divisors is an integer number (3378270).

Almost surely, 2^13287803 is an apocalyptic number.

13287803 is a deficient number, since it is larger than the sum of its proper divisors (225277).

13287803 is an equidigital number, since it uses as much as digits as its factorization.

13287803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225276.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 13287803 is about 3645.2438875883. The cubic root of 13287803 is about 236.8560015905.

The spelling of 13287803 in words is "thirteen million, two hundred eighty-seven thousand, eight hundred three".