12017007 has 12 divisors (see below), whose sum is σ = 17727840. Its totient is φ = 7840608.

The previous prime is 12017003. The next prime is 12017021. The reversal of 12017007 is 70071021.

It is not a de Polignac number, because 12017007 - 2² = 12017003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12017003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13782 + ... + 14627.

It is an arithmetic number, because the mean of its divisors is an integer number (1477320).

Almost surely, 2^12017007 is an apocalyptic number.

12017007 is a deficient number, since it is larger than the sum of its proper divisors (5710833).

12017007 is a wasteful number, since it uses less digits than its factorization.

12017007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28462 (or 28459 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 18.

The square root of 12017007 is about 3466.5554950123. Note that the first 3 decimals coincide. The cubic root of 12017007 is about 229.0509538733.

Adding to 12017007 its reverse (70071021), we get a palindrome (82088028).

The spelling of 12017007 in words is "twelve million, seventeen thousand, seven".