317929097 has 4 divisors (see below), whose sum is σ = 318830100. Its totient is φ = 317028096.

The previous prime is 317929081. The next prime is 317929153. The reversal of 317929097 is 790929713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 790929713 = 7 ⋅112989959.

It can be written as a sum of positive squares in 2 ways, for example, as 119006281 + 198922816 = 10909^2 + 14104^2 .

It is a cyclic number.

It is not a de Polignac number, because 317929097 - 2⁴ = 317929081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (317959097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449972 + ... + 450677.

It is an arithmetic number, because the mean of its divisors is an integer number (79707525).

Almost surely, 2^317929097 is an apocalyptic number.

It is an amenable number.

317929097 is a deficient number, since it is larger than the sum of its proper divisors (901003).

317929097 is an equidigital number, since it uses as much as digits as its factorization.

317929097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901002.

The product of its (nonzero) digits is 214326, while the sum is 47.

The square root of 317929097 is about 17830.5663678976. The cubic root of 317929097 is about 682.5116866153.

The spelling of 317929097 in words is "three hundred seventeen million, nine hundred twenty-nine thousand, ninety-seven".