12608217 has 10 divisors (see below), whose sum is σ = 18834618. Its totient is φ = 8405424.

The previous prime is 12608177. The next prime is 12608249. The reversal of 12608217 is 71280621.

It can be written as a sum of positive squares in only one way, i.e., 9865881 + 2742336 = 3141^2 + 1656^2 .

It is not a de Polignac number, because 12608217 - 2¹¹ = 12606169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12608257) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 77748 + ... + 77909.

Almost surely, 2^12608217 is an apocalyptic number.

It is an amenable number.

12608217 is a deficient number, since it is larger than the sum of its proper divisors (6226401).

12608217 is an equidigital number, since it uses as much as digits as its factorization.

12608217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155669 (or 155660 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 12608217 is about 3550.8051199693. The cubic root of 12608217 is about 232.7472499784.

Adding to 12608217 its reverse (71280621), we get a palindrome (83888838).

The spelling of 12608217 in words is "twelve million, six hundred eight thousand, two hundred seventeen".