12005017 has 4 divisors (see below), whose sum is σ = 12636880. Its totient is φ = 11373156.

The previous prime is 12004999. The next prime is 12005023. The reversal of 12005017 is 71050021.

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.

It is a cyclic number.

It is not a de Polignac number, because 12005017 - 2¹⁵ = 11972249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12005047) 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, 315903 + ... + 315940.

It is an arithmetic number, because the mean of its divisors is an integer number (3159220).

Almost surely, 2^12005017 is an apocalyptic number.

It is an amenable number.

12005017 is a deficient number, since it is larger than the sum of its proper divisors (631863).

12005017 is an equidigital number, since it uses as much as digits as its factorization.

12005017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631862.

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 12005017 is about 3464.8256810408. The cubic root of 12005017 is about 228.9747497950.

Adding to 12005017 its reverse (71050021), we get a palindrome (83055038).

The spelling of 12005017 in words is "twelve million, five thousand, seventeen".