12270417 has 4 divisors (see below), whose sum is σ = 16360560. Its totient is φ = 8180276.

The previous prime is 12270397. The next prime is 12270443. The reversal of 12270417 is 71407221.

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 12270417 - 2¹⁹ = 11746129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12270487) 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, 2045067 + ... + 2045072.

It is an arithmetic number, because the mean of its divisors is an integer number (4090140).

Almost surely, 2^12270417 is an apocalyptic number.

It is an amenable number.

12270417 is a deficient number, since it is larger than the sum of its proper divisors (4090143).

12270417 is an equidigital number, since it uses as much as digits as its factorization.

12270417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090142.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 12270417 is about 3502.9154999800. The cubic root of 12270417 is about 230.6498132834.

Adding to 12270417 its reverse (71407221), we get a palindrome (83677638).

The spelling of 12270417 in words is "twelve million, two hundred seventy thousand, four hundred seventeen".