12606919 has 4 divisors (see below), whose sum is σ = 13576696. Its totient is φ = 11637144.

The previous prime is 12606917. The next prime is 12606929. The reversal of 12606919 is 91960621.

12606919 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: 91960621 = 7069 ⋅13009.

It is a cyclic number.

It is not a de Polignac number, because 12606919 - 2¹ = 12606917 is a prime.

It is a super-2 number, since 2×12606919² = 317868813345122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12606917) 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, 484869 + ... + 484894.

It is an arithmetic number, because the mean of its divisors is an integer number (3394174).

Almost surely, 2^12606919 is an apocalyptic number.

12606919 is a deficient number, since it is larger than the sum of its proper divisors (969777).

12606919 is an equidigital number, since it uses as much as digits as its factorization.

12606919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969776.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 12606919 is about 3550.6223398159. The cubic root of 12606919 is about 232.7392626926.

The spelling of 12606919 in words is "twelve million, six hundred six thousand, nine hundred nineteen".