317289629 has 2 divisors, whose sum is σ = 317289630. Its totient is φ = 317289628.

The previous prime is 317289617. The next prime is 317289631. The reversal of 317289629 is 926982713.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277888900 + 39400729 = 16670^2 + 6277^2 .

It is a cyclic number.

It is not a de Polignac number, because 317289629 - 2¹² = 317285533 is a prime.

It is a Sophie Germain prime.

Together with 317289631, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317289229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158644814 + 158644815.

It is an arithmetic number, because the mean of its divisors is an integer number (158644815).

Almost surely, 2^317289629 is an apocalyptic number.

It is an amenable number.

317289629 is a deficient number, since it is larger than the sum of its proper divisors (1).

317289629 is an equidigital number, since it uses as much as digits as its factorization.

317289629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 47.

The square root of 317289629 is about 17812.6255504347. The cubic root of 317289629 is about 682.0537885813.

The spelling of 317289629 in words is "three hundred seventeen million, two hundred eighty-nine thousand, six hundred twenty-nine".