12748317 has 8 divisors (see below), whose sum is σ = 17997696. Its totient is φ = 7998912.

The previous prime is 12748289. The next prime is 12748343. The reversal of 12748317 is 71384721.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12748317 - 2⁸ = 12748061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12748357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124933 + ... + 125034.

It is an arithmetic number, because the mean of its divisors is an integer number (2249712).

Almost surely, 2^12748317 is an apocalyptic number.

12748317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12748317 is a deficient number, since it is larger than the sum of its proper divisors (5249379).

12748317 is a wasteful number, since it uses less digits than its factorization.

12748317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249987.

The product of its digits is 9408, while the sum is 33.

The square root of 12748317 is about 3570.4785393558. The cubic root of 12748317 is about 233.6061568422.

It can be divided in two parts, 1274 and 8317, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 12748317 in words is "twelve million, seven hundred forty-eight thousand, three hundred seventeen".