12193886 has 4 divisors (see below), whose sum is σ = 18290832. Its totient is φ = 6096942.

The previous prime is 12193871. The next prime is 12193889. The reversal of 12193886 is 68839121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12193889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3048470 + ... + 3048473.

It is an arithmetic number, because the mean of its divisors is an integer number (4572708).

Almost surely, 2^12193886 is an apocalyptic number.

12193886 is a deficient number, since it is larger than the sum of its proper divisors (6096946).

12193886 is an equidigital number, since it uses as much as digits as its factorization.

12193886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6096945.

The product of its digits is 20736, while the sum is 38.

The square root of 12193886 is about 3491.9745130800. The cubic root of 12193886 is about 230.1692893542.

The spelling of 12193886 in words is "twelve million, one hundred ninety-three thousand, eight hundred eighty-six".