317182989 has 8 divisors (see below), whose sum is σ = 426863520. Its totient is φ = 209478896.

The previous prime is 317182973. The next prime is 317182993. The reversal of 317182989 is 989281713.

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 317182989 - 2⁴ = 317182973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317182939) 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, 493734 + ... + 494375.

It is an arithmetic number, because the mean of its divisors is an integer number (53357940).

Almost surely, 2^317182989 is an apocalyptic number.

It is an amenable number.

317182989 is a deficient number, since it is larger than the sum of its proper divisors (109680531).

317182989 is a wasteful number, since it uses less digits than its factorization.

317182989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 988219.

The product of its digits is 217728, while the sum is 48.

The square root of 317182989 is about 17809.6319164659. The cubic root of 317182989 is about 681.9773680080.

The spelling of 317182989 in words is "three hundred seventeen million, one hundred eighty-two thousand, nine hundred eighty-nine".