12227617 has 8 divisors (see below), whose sum is σ = 12414600. Its totient is φ = 12042240.

The previous prime is 12227599. The next prime is 12227623. The reversal of 12227617 is 71672221.

It can be written as a sum of positive squares in 4 ways, for example, as 776161 + 11451456 = 881^2 + 3384^2 .

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 12227617 - 2⁷ = 12227489 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12227627) 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, 27009 + ... + 27457.

It is an arithmetic number, because the mean of its divisors is an integer number (1551825).

Almost surely, 2^12227617 is an apocalyptic number.

It is an amenable number.

12227617 is a deficient number, since it is larger than the sum of its proper divisors (186983).

12227617 is a wasteful number, since it uses less digits than its factorization.

12227617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803.

The product of its digits is 2352, while the sum is 28.

The square root of 12227617 is about 3496.8009665979. The cubic root of 12227617 is about 230.3813271040.

Adding to 12227617 its reverse (71672221), we get a palindrome (83899838).

The spelling of 12227617 in words is "twelve million, two hundred twenty-seven thousand, six hundred seventeen".