317871648 has 96 divisors (see below), whose sum is σ = 931694400. Its totient is φ = 105435648.

The previous prime is 317871629. The next prime is 317871649. The reversal of 317871648 is 846178713.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (317871649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200523 + ... + 202101.

It is an arithmetic number, because the mean of its divisors is an integer number (9705150).

Almost surely, 2^317871648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317871648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (465847200).

317871648 is an abundant number, since it is smaller than the sum of its proper divisors (613822752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317871648 is a wasteful number, since it uses less digits than its factorization.

317871648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831 (or 1817 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 317871648 is about 17828.9553255372. The cubic root of 317871648 is about 682.4705747488.

The spelling of 317871648 in words is "three hundred seventeen million, eight hundred seventy-one thousand, six hundred forty-eight".