317047680 has 192 divisors, whose sum is σ = 1152824400. Its totient is φ = 80068608.

The previous prime is 317047673. The next prime is 317047681. The reversal of 317047680 is 86740713.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317047681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107992 + ... + 110888.

Almost surely, 2^317047680 is an apocalyptic number.

317047680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317047680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (576412200).

317047680 is an abundant number, since it is smaller than the sum of its proper divisors (835776720).

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

317047680 is a wasteful number, since it uses less digits than its factorization.

317047680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2941 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 317047680 is about 17805.8327522191. The cubic root of 317047680 is about 681.8803779384.

The spelling of 317047680 in words is "three hundred seventeen million, forty-seven thousand, six hundred eighty".