12741979 has 4 divisors (see below), whose sum is σ = 12749400. Its totient is φ = 12734560.

The previous prime is 12741973. The next prime is 12741983. The reversal of 12741979 is 97914721.

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.

It is a cyclic number.

It is not a de Polignac number, because 12741979 - 2⁵ = 12741947 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12741973) 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, 339 + ... + 5059.

It is an arithmetic number, because the mean of its divisors is an integer number (3187350).

Almost surely, 2^12741979 is an apocalyptic number.

12741979 is a deficient number, since it is larger than the sum of its proper divisors (7421).

12741979 is an equidigital number, since it uses as much as digits as its factorization.

12741979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7420.

The product of its digits is 31752, while the sum is 40.

The square root of 12741979 is about 3569.5908729153. The cubic root of 12741979 is about 233.5674369271.

The spelling of 12741979 in words is "twelve million, seven hundred forty-one thousand, nine hundred seventy-nine".