12708505 has 4 divisors (see below), whose sum is σ = 15250212. Its totient is φ = 10166800.

The previous prime is 12708491. The next prime is 12708517. The reversal of 12708505 is 50580721.

12708505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50580721 = 113 ⋅447617.

It can be written as a sum of positive squares in 2 ways, for example, as 6170256 + 6538249 = 2484^2 + 2557^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12708505 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1270846 + ... + 1270855.

It is an arithmetic number, because the mean of its divisors is an integer number (3812553).

Almost surely, 2^12708505 is an apocalyptic number.

It is an amenable number.

12708505 is a deficient number, since it is larger than the sum of its proper divisors (2541707).

12708505 is an equidigital number, since it uses as much as digits as its factorization.

12708505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541706.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 12708505 is about 3564.8990168026. The cubic root of 12708505 is about 233.3627253224.

The spelling of 12708505 in words is "twelve million, seven hundred eight thousand, five hundred five".