317640097 has 16 divisors (see below), whose sum is σ = 340433280. Its totient is φ = 295650432.

The previous prime is 317640083. The next prime is 317640101. The reversal of 317640097 is 790046713.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-317640097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317640047) 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, 392229 + ... + 393037.

It is an arithmetic number, because the mean of its divisors is an integer number (21277080).

Almost surely, 2^317640097 is an apocalyptic number.

It is an amenable number.

317640097 is a deficient number, since it is larger than the sum of its proper divisors (22793183).

317640097 is a wasteful number, since it uses less digits than its factorization.

317640097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 317640097 is about 17822.4604642569. The cubic root of 317640097 is about 682.3048211271.

The spelling of 317640097 in words is "three hundred seventeen million, six hundred forty thousand, ninety-seven".