12711705 has 16 divisors (see below), whose sum is σ = 20995584. Its totient is φ = 6560640.

The previous prime is 12711701. The next prime is 12711719. The reversal of 12711705 is 50711721.

It is a happy number.

It is not a de Polignac number, because 12711705 - 2² = 12711701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12711701) 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 15 ways as a sum of consecutive naturals, for example, 13204 + ... + 14133.

It is an arithmetic number, because the mean of its divisors is an integer number (1312224).

Almost surely, 2^12711705 is an apocalyptic number.

12711705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12711705 is a deficient number, since it is larger than the sum of its proper divisors (8283879).

12711705 is a wasteful number, since it uses less digits than its factorization.

12711705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27376.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 12711705 is about 3565.3478091205. The cubic root of 12711705 is about 233.3823105805.

The spelling of 12711705 in words is "twelve million, seven hundred eleven thousand, seven hundred five".