13813803 has 12 divisors (see below), whose sum is σ = 19986408. Its totient is φ = 9193920.

The previous prime is 13813801. The next prime is 13813829. The reversal of 13813803 is 30831831.

It is not a de Polignac number, because 13813803 - 2¹ = 13813801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13813801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8008 + ... + 9578.

It is an arithmetic number, because the mean of its divisors is an integer number (1665534).

Almost surely, 2^13813803 is an apocalyptic number.

13813803 is a deficient number, since it is larger than the sum of its proper divisors (6172605).

13813803 is a wasteful number, since it uses less digits than its factorization.

13813803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2554 (or 2551 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 13813803 is about 3716.6924812257. The cubic root of 13813803 is about 239.9409750681.

It can be divided in two parts, 1381 and 3803, that added together give a square (5184 = 72²).

The spelling of 13813803 in words is "thirteen million, eight hundred thirteen thousand, eight hundred three".