12424417 has 4 divisors (see below), whose sum is σ = 12431536. Its totient is φ = 12417300.

The previous prime is 12424387. The next prime is 12424427. The reversal of 12424417 is 71442421.

12424417 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 71442421 = 439 ⋅162739.

It is a cyclic number.

It is not a de Polignac number, because 12424417 - 2¹⁵ = 12391649 is a prime.

It is a super-2 number, since 2×12424417² = 308732275579778, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12424391 and 12424400.

It is not an unprimeable number, because it can be changed into a prime (12424427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1042 + ... + 5092.

It is an arithmetic number, because the mean of its divisors is an integer number (3107884).

Almost surely, 2^12424417 is an apocalyptic number.

It is an amenable number.

12424417 is a deficient number, since it is larger than the sum of its proper divisors (7119).

12424417 is an equidigital number, since it uses as much as digits as its factorization.

12424417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7118.

The product of its digits is 1792, while the sum is 25.

The square root of 12424417 is about 3524.8286483175. The cubic root of 12424417 is about 231.6107287495.

Adding to 12424417 its reverse (71442421), we get a palindrome (83866838).

The spelling of 12424417 in words is "twelve million, four hundred twenty-four thousand, four hundred seventeen".