12238717 has 4 divisors (see below), whose sum is σ = 12882880. Its totient is φ = 11594556.

The previous prime is 12238661. The next prime is 12238729. The reversal of 12238717 is 71783221.

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 an emirpimes, since its reverse is a distinct semiprime: 71783221 = 6089 ⋅11789.

It is a cyclic number.

It is not a de Polignac number, because 12238717 - 2¹¹ = 12236669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12238757) 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, 322053 + ... + 322090.

It is an arithmetic number, because the mean of its divisors is an integer number (3220720).

Almost surely, 2^12238717 is an apocalyptic number.

It is an amenable number.

12238717 is a deficient number, since it is larger than the sum of its proper divisors (644163).

12238717 is an equidigital number, since it uses as much as digits as its factorization.

12238717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644162.

The product of its digits is 4704, while the sum is 31.

The square root of 12238717 is about 3498.3877715313. The cubic root of 12238717 is about 230.4510179608.

The spelling of 12238717 in words is "twelve million, two hundred thirty-eight thousand, seven hundred seventeen".