12660017 has 8 divisors (see below), whose sum is σ = 13021536. Its totient is φ = 12301632.

The previous prime is 12660013. The next prime is 12660091. The reversal of 12660017 is 71006621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12660017 - 2² = 12660013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12659974 and 12660001.

It is not an unprimeable number, because it can be changed into a prime (12660013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9113 + ... + 10409.

It is an arithmetic number, because the mean of its divisors is an integer number (1627692).

Almost surely, 2^12660017 is an apocalyptic number.

It is an amenable number.

12660017 is a deficient number, since it is larger than the sum of its proper divisors (361519).

12660017 is a wasteful number, since it uses less digits than its factorization.

12660017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 12660017 is about 3558.0917638532. The cubic root of 12660017 is about 233.0655565317.

Adding to 12660017 its reverse (71006621), we get a palindrome (83666638).

The spelling of 12660017 in words is "twelve million, six hundred sixty thousand, seventeen".