12730317 has 4 divisors (see below), whose sum is σ = 16973760. Its totient is φ = 8486876.

The previous prime is 12730313. The next prime is 12730321. The reversal of 12730317 is 71303721.

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 an interprime number because it is at equal distance from previous prime (12730313) and next prime (12730321).

It is a cyclic number.

It is not a de Polignac number, because 12730317 - 2² = 12730313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12730313) 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, 2121717 + ... + 2121722.

It is an arithmetic number, because the mean of its divisors is an integer number (4243440).

Almost surely, 2^12730317 is an apocalyptic number.

It is an amenable number.

12730317 is a deficient number, since it is larger than the sum of its proper divisors (4243443).

12730317 is an equidigital number, since it uses as much as digits as its factorization.

12730317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243442.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 12730317 is about 3567.9569784402. The cubic root of 12730317 is about 233.4961582330.

The spelling of 12730317 in words is "twelve million, seven hundred thirty thousand, three hundred seventeen".