317577993 has 8 divisors (see below), whose sum is σ = 434881728. Its totient is φ = 205996464.

The previous prime is 317577979. The next prime is 317578049. The reversal of 317577993 is 399775713.

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

It is not a de Polignac number, because 317577993 - 2⁴ = 317577977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (317577973) 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, 1430421 + ... + 1430642.

It is an arithmetic number, because the mean of its divisors is an integer number (54360216).

Almost surely, 2^317577993 is an apocalyptic number.

It is an amenable number.

317577993 is a deficient number, since it is larger than the sum of its proper divisors (117303735).

317577993 is a wasteful number, since it uses less digits than its factorization.

317577993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861103.

The product of its digits is 1250235, while the sum is 51.

The square root of 317577993 is about 17820.7180831750. The cubic root of 317577993 is about 682.2603508593.

The spelling of 317577993 in words is "three hundred seventeen million, five hundred seventy-seven thousand, nine hundred ninety-three".