12606394 has 4 divisors (see below), whose sum is σ = 18909594. Its totient is φ = 6303196.

The previous prime is 12606383. The next prime is 12606397. The reversal of 12606394 is 49360621.

12606394 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.

It can be written as a sum of positive squares in only one way, i.e., 12341169 + 265225 = 3513^2 + 515^2 .

It is a Smith number, since the sum of its digits (31) 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 (12606397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3151597 + ... + 3151600.

Almost surely, 2^12606394 is an apocalyptic number.

12606394 is a deficient number, since it is larger than the sum of its proper divisors (6303200).

12606394 is an equidigital number, since it uses as much as digits as its factorization.

12606394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303199.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 12606394 is about 3550.5484083448. The cubic root of 12606394 is about 232.7360319320.

The spelling of 12606394 in words is "twelve million, six hundred six thousand, three hundred ninety-four".