317929999 has 2 divisors, whose sum is σ = 317930000. Its totient is φ = 317929998.

The previous prime is 317929979. The next prime is 317930051. The reversal of 317929999 is 999929713.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 317929999 - 2⁵ = 317929967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317929979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158964999 + 158965000.

It is an arithmetic number, because the mean of its divisors is an integer number (158965000).

Almost surely, 2^317929999 is an apocalyptic number.

317929999 is a deficient number, since it is larger than the sum of its proper divisors (1).

317929999 is an equidigital number, since it uses as much as digits as its factorization.

317929999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2480058, while the sum is 58.

The square root of 317929999 is about 17830.5916615237. The cubic root of 317929999 is about 682.5123320684.

The spelling of 317929999 in words is "three hundred seventeen million, nine hundred twenty-nine thousand, nine hundred ninety-nine".