13828223 has 4 divisors (see below), whose sum is σ = 13970880. Its totient is φ = 13685568.

The previous prime is 13828211. The next prime is 13828247. The reversal of 13828223 is 32282831.

13828223 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: 32282831 = 7 ⋅4611833.

It is a cyclic number.

It is not a de Polignac number, because 13828223 - 2⁴ = 13828207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13828253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71183 + ... + 71376.

It is an arithmetic number, because the mean of its divisors is an integer number (3492720).

Almost surely, 2^13828223 is an apocalyptic number.

13828223 is a deficient number, since it is larger than the sum of its proper divisors (142657).

13828223 is an equidigital number, since it uses as much as digits as its factorization.

13828223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142656.

The product of its digits is 4608, while the sum is 29.

The square root of 13828223 is about 3718.6318720734. The cubic root of 13828223 is about 240.0244361693.

The spelling of 13828223 in words is "thirteen million, eight hundred twenty-eight thousand, two hundred twenty-three".