317201891 has 8 divisors (see below), whose sum is σ = 322710000. Its totient is φ = 311703840.

The previous prime is 317201879. The next prime is 317201893. The reversal of 317201891 is 198102713.

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 317201891 - 2¹⁰ = 317200867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317201893) 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, 89705 + ... + 93173.

It is an arithmetic number, because the mean of its divisors is an integer number (40338750).

Almost surely, 2^317201891 is an apocalyptic number.

317201891 is a deficient number, since it is larger than the sum of its proper divisors (5508109).

317201891 is a wasteful number, since it uses less digits than its factorization.

317201891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5029.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 317201891 is about 17810.1625764618. The cubic root of 317201891 is about 681.9909148465.

The spelling of 317201891 in words is "three hundred seventeen million, two hundred one thousand, eight hundred ninety-one".