13828523 has 4 divisors (see below), whose sum is σ = 14556360. Its totient is φ = 13100688.

The previous prime is 13828513. The next prime is 13828559. The reversal of 13828523 is 32582831.

13828523 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 13828523 - 2⁶ = 13828459 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 13828523.

It is not an unprimeable number, because it can be changed into a prime (13828513) 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 3 ways as a sum of consecutive naturals, for example, 363890 + ... + 363927.

It is an arithmetic number, because the mean of its divisors is an integer number (3639090).

Almost surely, 2^13828523 is an apocalyptic number.

13828523 is a deficient number, since it is larger than the sum of its proper divisors (727837).

13828523 is an equidigital number, since it uses as much as digits as its factorization.

13828523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727836.

The product of its digits is 11520, while the sum is 32.

The square root of 13828523 is about 3718.6722092704. The cubic root of 13828523 is about 240.0261719144.

The spelling of 13828523 in words is "thirteen million, eight hundred twenty-eight thousand, five hundred twenty-three".