12712711 has 4 divisors (see below), whose sum is σ = 13868424. Its totient is φ = 11557000.

The previous prime is 12712703. The next prime is 12712727. The reversal of 12712711 is 11721721.

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 12712711 - 2³ = 12712703 is a prime.

It is a super-2 number, since 2×12712711² = 323226041939042, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12712741) 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, 577840 + ... + 577861.

It is an arithmetic number, because the mean of its divisors is an integer number (3467106).

Almost surely, 2^12712711 is an apocalyptic number.

12712711 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12712711 is a deficient number, since it is larger than the sum of its proper divisors (1155713).

12712711 is a wasteful number, since it uses less digits than its factorization.

12712711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155712.

The product of its digits is 196, while the sum is 22.

The square root of 12712711 is about 3565.4888865344. The cubic root of 12712711 is about 233.3884670169.

The spelling of 12712711 in words is "twelve million, seven hundred twelve thousand, seven hundred eleven".