12771079 has 4 divisors (see below), whose sum is σ = 12778920. Its totient is φ = 12763240.

The previous prime is 12771053. The next prime is 12771089. The reversal of 12771079 is 97017721.

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 12771079 - 2⁵ = 12771047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12771019) 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, 457 + ... + 5074.

It is an arithmetic number, because the mean of its divisors is an integer number (3194730).

Almost surely, 2^12771079 is an apocalyptic number.

12771079 is a deficient number, since it is larger than the sum of its proper divisors (7841).

12771079 is an equidigital number, since it uses as much as digits as its factorization.

12771079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7840.

The product of its (nonzero) digits is 6174, while the sum is 34.

The square root of 12771079 is about 3573.6646457103. The cubic root of 12771079 is about 233.7451080410.

The spelling of 12771079 in words is "twelve million, seven hundred seventy-one thousand, seventy-nine".