13728023 has 4 divisors (see below), whose sum is σ = 13812408. Its totient is φ = 13643640.

The previous prime is 13727981. The next prime is 13728037. The reversal of 13728023 is 32082731.

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 13728023 - 2⁸ = 13727767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13727983 and 13728001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13728823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41948 + ... + 42273.

It is an arithmetic number, because the mean of its divisors is an integer number (3453102).

Almost surely, 2^13728023 is an apocalyptic number.

13728023 is a deficient number, since it is larger than the sum of its proper divisors (84385).

13728023 is an equidigital number, since it uses as much as digits as its factorization.

13728023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84384.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 13728023 is about 3705.1346804131. The cubic root of 13728023 is about 239.4432871733.

The spelling of 13728023 in words is "thirteen million, seven hundred twenty-eight thousand, twenty-three".