12726069 has 4 divisors (see below), whose sum is σ = 16968096. Its totient is φ = 8484044.

The previous prime is 12726059. The next prime is 12726073. The reversal of 12726069 is 96062721.

12726069 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96062721 = 3 ⋅32020907.

It is a cyclic number.

It is not a de Polignac number, because 12726069 - 2⁵ = 12726037 is a prime.

It is a super-2 number, since 2×12726069² = 323905664385522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12726019) 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, 2121009 + ... + 2121014.

It is an arithmetic number, because the mean of its divisors is an integer number (4242024).

Almost surely, 2^12726069 is an apocalyptic number.

It is an amenable number.

12726069 is a deficient number, since it is larger than the sum of its proper divisors (4242027).

12726069 is an equidigital number, since it uses as much as digits as its factorization.

12726069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4242026.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 12726069 is about 3567.3616301127. The cubic root of 12726069 is about 233.4701834405.

The spelling of 12726069 in words is "twelve million, seven hundred twenty-six thousand, sixty-nine".