13823219 has 4 divisors (see below), whose sum is σ = 13903296. Its totient is φ = 13743144.

The previous prime is 13823209. The next prime is 13823221. The reversal of 13823219 is 91232831.

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 13823219 - 2¹⁶ = 13757683 is a prime.

It is a super-2 number, since 2×13823219² = 382162767043922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13823191 and 13823200.

It is not an unprimeable number, because it can be changed into a prime (13823209) 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, 39779 + ... + 40124.

It is an arithmetic number, because the mean of its divisors is an integer number (3475824).

Almost surely, 2^13823219 is an apocalyptic number.

13823219 is a deficient number, since it is larger than the sum of its proper divisors (80077).

13823219 is an equidigital number, since it uses as much as digits as its factorization.

13823219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80076.

The product of its digits is 2592, while the sum is 29.

The square root of 13823219 is about 3717.9589830981. The cubic root of 13823219 is about 239.9954802390.

The spelling of 13823219 in words is "thirteen million, eight hundred twenty-three thousand, two hundred nineteen".