12566794 has 4 divisors (see below), whose sum is σ = 18850194. Its totient is φ = 6283396.

The previous prime is 12566789. The next prime is 12566797. The reversal of 12566794 is 49766521.

12566794 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: 49766521 = 7 ⋅7109503.

It can be written as a sum of positive squares in only one way, i.e., 12341169 + 225625 = 3513^2 + 475^2 .

It is a super-2 number, since 2×12566794² = 315848622876872, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12566797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3141697 + ... + 3141700.

Almost surely, 2^12566794 is an apocalyptic number.

12566794 is a deficient number, since it is larger than the sum of its proper divisors (6283400).

12566794 is an equidigital number, since it uses as much as digits as its factorization.

12566794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6283399.

The product of its digits is 90720, while the sum is 40.

The square root of 12566794 is about 3544.9674187501. The cubic root of 12566794 is about 232.4920812812.

The spelling of 12566794 in words is "twelve million, five hundred sixty-six thousand, seven hundred ninety-four".