317728039 has 8 divisors (see below), whose sum is σ = 323885520. Its totient is φ = 311596416.

The previous prime is 317728001. The next prime is 317728063. The reversal of 317728039 is 930827713.

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

It is a cyclic number.

It is not a de Polignac number, because 317728039 - 2¹⁹ = 317203751 is a prime.

It is a super-2 number, since 2×317728039² = 201902213533571042, 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 = 317727992 and 317728010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317758039) 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 7 ways as a sum of consecutive naturals, for example, 19329 + ... + 31765.

It is an arithmetic number, because the mean of its divisors is an integer number (40485690).

Almost surely, 2^317728039 is an apocalyptic number.

317728039 is a deficient number, since it is larger than the sum of its proper divisors (6157481).

317728039 is a wasteful number, since it uses less digits than its factorization.

317728039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12929.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 317728039 is about 17824.9274612830. The cubic root of 317728039 is about 682.3677830710.

The spelling of 317728039 in words is "three hundred seventeen million, seven hundred twenty-eight thousand, thirty-nine".