12426017 has 4 divisors (see below), whose sum is σ = 12542256. Its totient is φ = 12309780.

The previous prime is 12425999. The next prime is 12426041. The reversal of 12426017 is 71062421.

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: 71062421 = 149 ⋅476929.

It is a cyclic number.

It is not a de Polignac number, because 12426017 - 2¹² = 12421921 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12425983 and 12426001.

It is not an unprimeable number, because it can be changed into a prime (12426047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57959 + ... + 58172.

It is an arithmetic number, because the mean of its divisors is an integer number (3135564).

Almost surely, 2^12426017 is an apocalyptic number.

It is an amenable number.

12426017 is a deficient number, since it is larger than the sum of its proper divisors (116239).

12426017 is a wasteful number, since it uses less digits than its factorization.

12426017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116238.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 12426017 is about 3525.0556023984. The cubic root of 12426017 is about 231.6206704973.

Adding to 12426017 its reverse (71062421), we get a palindrome (83488438).

The spelling of 12426017 in words is "twelve million, four hundred twenty-six thousand, seventeen".