12611679 has 4 divisors (see below), whose sum is σ = 16815576. Its totient is φ = 8407784.

The previous prime is 12611633. The next prime is 12611693. The reversal of 12611679 is 97611621.

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 12611679 - 2⁹ = 12611167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12611279) 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 in 3 ways as a sum of consecutive naturals, for example, 2101944 + ... + 2101949.

It is an arithmetic number, because the mean of its divisors is an integer number (4203894).

Almost surely, 2^12611679 is an apocalyptic number.

12611679 is a deficient number, since it is larger than the sum of its proper divisors (4203897).

12611679 is an equidigital number, since it uses as much as digits as its factorization.

12611679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4203896.

The product of its digits is 4536, while the sum is 33.

The square root of 12611679 is about 3551.2925815821. The cubic root of 12611679 is about 232.7685508290.

The spelling of 12611679 in words is "twelve million, six hundred eleven thousand, six hundred seventy-nine".