12679963 has 4 divisors (see below), whose sum is σ = 12699808. Its totient is φ = 12660120.

The previous prime is 12679957. The next prime is 12679987. The reversal of 12679963 is 36997621.

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

It is a cyclic number.

It is not a de Polignac number, because 12679963 - 2⁹ = 12679451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12679903) 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, 8931 + ... + 10252.

It is an arithmetic number, because the mean of its divisors is an integer number (3174952).

Almost surely, 2^12679963 is an apocalyptic number.

12679963 is a deficient number, since it is larger than the sum of its proper divisors (19845).

12679963 is an equidigital number, since it uses as much as digits as its factorization.

12679963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19844.

The product of its digits is 122472, while the sum is 43.

The square root of 12679963 is about 3560.8935676316. The cubic root of 12679963 is about 233.1878914478.

It can be divided in two parts, 126 and 79963, that added together give a square (80089 = 283²).

The spelling of 12679963 in words is "twelve million, six hundred seventy-nine thousand, nine hundred sixty-three".