12417617 has 4 divisors (see below), whose sum is σ = 12439716. Its totient is φ = 12395520.

The previous prime is 12417593. The next prime is 12417637. The reversal of 12417617 is 71671421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10297681 + 2119936 = 3209^2 + 1456^2 .

It is a cyclic number.

It is not a de Polignac number, because 12417617 - 2¹² = 12413521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12417617.

It is not an unprimeable number, because it can be changed into a prime (12417637) 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, 10184 + ... + 11337.

It is an arithmetic number, because the mean of its divisors is an integer number (3109929).

Almost surely, 2^12417617 is an apocalyptic number.

It is an amenable number.

12417617 is a deficient number, since it is larger than the sum of its proper divisors (22099).

12417617 is an equidigital number, since it uses as much as digits as its factorization.

12417617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22098.

The product of its digits is 2352, while the sum is 29.

The square root of 12417617 is about 3523.8639304037. The cubic root of 12417617 is about 231.5684667968.

The spelling of 12417617 in words is "twelve million, four hundred seventeen thousand, six hundred seventeen".