12196399 has 4 divisors (see below), whose sum is σ = 12206080. Its totient is φ = 12186720.

The previous prime is 12196369. The next prime is 12196427. The reversal of 12196399 is 99369121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 99369121 = 587 ⋅169283.

It is a cyclic number.

It is not a de Polignac number, because 12196399 - 2²¹ = 10099247 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 (12196369) 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, 2607 + ... + 5584.

It is an arithmetic number, because the mean of its divisors is an integer number (3051520).

Almost surely, 2^12196399 is an apocalyptic number.

12196399 is a deficient number, since it is larger than the sum of its proper divisors (9681).

12196399 is an equidigital number, since it uses as much as digits as its factorization.

12196399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9680.

The product of its digits is 26244, while the sum is 40.

The square root of 12196399 is about 3492.3343196206. The cubic root of 12196399 is about 230.1850998922.

The spelling of 12196399 in words is "twelve million, one hundred ninety-six thousand, three hundred ninety-nine".