12392417 has 4 divisors (see below), whose sum is σ = 12432576. Its totient is φ = 12352260.

The previous prime is 12392383. The next prime is 12392437. The reversal of 12392417 is 71429321.

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 12392417 - 2²⁰ = 11343841 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 12392417.

It is not an unprimeable number, because it can be changed into a prime (12392437) 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, 19613 + ... + 20234.

It is an arithmetic number, because the mean of its divisors is an integer number (3108144).

Almost surely, 2^12392417 is an apocalyptic number.

It is an amenable number.

12392417 is a deficient number, since it is larger than the sum of its proper divisors (40159).

12392417 is an equidigital number, since it uses as much as digits as its factorization.

12392417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40158.

The product of its digits is 3024, while the sum is 29.

The square root of 12392417 is about 3520.2864940229. The cubic root of 12392417 is about 231.4117143026.

The spelling of 12392417 in words is "twelve million, three hundred ninety-two thousand, four hundred seventeen".