317243386 has 4 divisors (see below), whose sum is σ = 475865082. Its totient is φ = 158621692.

The previous prime is 317243351. The next prime is 317243401. The reversal of 317243386 is 683342713.

317243386 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 683342713 = 43 ⋅15891691.

It can be written as a sum of positive squares in only one way, i.e., 269977761 + 47265625 = 16431^2 + 6875^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79310845 + ... + 79310848.

Almost surely, 2^317243386 is an apocalyptic number.

317243386 is a deficient number, since it is larger than the sum of its proper divisors (158621696).

317243386 is a wasteful number, since it uses less digits than its factorization.

317243386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158621695.

The product of its digits is 72576, while the sum is 37.

The square root of 317243386 is about 17811.3274631623. The cubic root of 317243386 is about 682.0206519318.

The spelling of 317243386 in words is "three hundred seventeen million, two hundred forty-three thousand, three hundred eighty-six".