12706563 has 4 divisors (see below), whose sum is σ = 16942088. Its totient is φ = 8471040.

The previous prime is 12706517. The next prime is 12706567. The reversal of 12706563 is 36560721.

12706563 is digitally balanced in base 3, 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: 36560721 = 3 ⋅12186907.

It is not a de Polignac number, because 12706563 - 2¹⁴ = 12690179 is a prime.

It is a super-2 number, since 2×12706563² = 322913486545938, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 12706563.

It is not an unprimeable number, because it can be changed into a prime (12706567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2117758 + ... + 2117763.

It is an arithmetic number, because the mean of its divisors is an integer number (4235522).

Almost surely, 2^12706563 is an apocalyptic number.

12706563 is a deficient number, since it is larger than the sum of its proper divisors (4235525).

12706563 is an equidigital number, since it uses as much as digits as its factorization.

12706563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235524.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 12706563 is about 3564.6266284143. The cubic root of 12706563 is about 233.3508379158.

The spelling of 12706563 in words is "twelve million, seven hundred six thousand, five hundred sixty-three".