12823199 has 4 divisors (see below), whose sum is σ = 12839640. Its totient is φ = 12806760.

The previous prime is 12823193. The next prime is 12823207. The reversal of 12823199 is 99132821.

12823199 is nontrivially palindromic in base 3.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99132821 = 5437 ⋅18233.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12823199 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 (12823193) 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, 6989 + ... + 8630.

It is an arithmetic number, because the mean of its divisors is an integer number (3209910).

Almost surely, 2^12823199 is an apocalyptic number.

12823199 is a deficient number, since it is larger than the sum of its proper divisors (16441).

12823199 is an equidigital number, since it uses as much as digits as its factorization.

12823199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16440.

The product of its digits is 7776, while the sum is 35.

The square root of 12823199 is about 3580.9494551027. The cubic root of 12823199 is about 234.0626551972.

The spelling of 12823199 in words is "twelve million, eight hundred twenty-three thousand, one hundred ninety-nine".