12196809 has 12 divisors (see below), whose sum is σ = 17661696. Its totient is φ = 8110872.

The previous prime is 12196783. The next prime is 12196813. The reversal of 12196809 is 90869121.

It is not a de Polignac number, because 12196809 - 2⁸ = 12196553 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12196819) 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 11 ways as a sum of consecutive naturals, for example, 2704 + ... + 5630.

It is an arithmetic number, because the mean of its divisors is an integer number (1471808).

Almost surely, 2^12196809 is an apocalyptic number.

It is an amenable number.

12196809 is a deficient number, since it is larger than the sum of its proper divisors (5464887).

12196809 is a wasteful number, since it uses less digits than its factorization.

12196809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396 (or 3393 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 12196809 is about 3492.3930191203. The cubic root of 12196809 is about 230.1876792009.

The spelling of 12196809 in words is "twelve million, one hundred ninety-six thousand, eight hundred nine".