13813983 has 20 divisors (see below), whose sum is σ = 20763600. Its totient is φ = 9152352.

The previous prime is 13813963. The next prime is 13813991. The reversal of 13813983 is 38931831.

It is not a de Polignac number, because 13813983 - 2⁵ = 13813951 is a prime.

It is a super-2 number, since 2×13813983² = 381652252648578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13813903) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15691 + ... + 16547.

It is an arithmetic number, because the mean of its divisors is an integer number (1038180).

Almost surely, 2^13813983 is an apocalyptic number.

13813983 is a deficient number, since it is larger than the sum of its proper divisors (6949617).

13813983 is an equidigital number, since it uses as much as digits as its factorization.

13813983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068 (or 1059 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 13813983 is about 3716.7166962253. The cubic root of 13813983 is about 239.9420172428.

The spelling of 13813983 in words is "thirteen million, eight hundred thirteen thousand, nine hundred eighty-three".