13813929 has 8 divisors (see below), whose sum is σ = 20465120. Its totient is φ = 9209268.

The previous prime is 13813927. The next prime is 13813937. The reversal of 13813929 is 92931831.

It is not a de Polignac number, because 13813929 - 2¹ = 13813927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13813893 and 13813902.

It is not an unprimeable number, because it can be changed into a prime (13813927) 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 7 ways as a sum of consecutive naturals, for example, 255787 + ... + 255840.

It is an arithmetic number, because the mean of its divisors is an integer number (2558140).

Almost surely, 2^13813929 is an apocalyptic number.

It is an amenable number.

13813929 is a deficient number, since it is larger than the sum of its proper divisors (6651191).

13813929 is an equidigital number, since it uses as much as digits as its factorization.

13813929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511636 (or 511630 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 13813929 is about 3716.7094317420. The cubic root of 13813929 is about 239.9417045913.

The spelling of 13813929 in words is "thirteen million, eight hundred thirteen thousand, nine hundred twenty-nine".