13813882 has 4 divisors (see below), whose sum is σ = 20720826. Its totient is φ = 6906940.

The previous prime is 13813873. The next prime is 13813883. The reversal of 13813882 is 28831831.

13813882 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28831831 = 7 ⋅4118833.

It can be written as a sum of positive squares in only one way, i.e., 10817521 + 2996361 = 3289^2 + 1731^2 .

It is not an unprimeable number, because it can be changed into a prime (13813883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3453469 + ... + 3453472.

Almost surely, 2^13813882 is an apocalyptic number.

13813882 is a deficient number, since it is larger than the sum of its proper divisors (6906944).

13813882 is an equidigital number, since it uses as much as digits as its factorization.

13813882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6906943.

The product of its digits is 9216, while the sum is 34.

The square root of 13813882 is about 3716.7031089394. The cubic root of 13813882 is about 239.9414324681.

The spelling of 13813882 in words is "thirteen million, eight hundred thirteen thousand, eight hundred eighty-two".