317679655 has 4 divisors (see below), whose sum is σ = 381215592. Its totient is φ = 254143720.

The previous prime is 317679653. The next prime is 317679671. The reversal of 317679655 is 556976713.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556976713 = 18979 ⋅29347.

It is not a de Polignac number, because 317679655 - 2¹ = 317679653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 317679599 and 317679608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317679653) 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, 31767961 + ... + 31767970.

It is an arithmetic number, because the mean of its divisors is an integer number (95303898).

Almost surely, 2^317679655 is an apocalyptic number.

317679655 is a deficient number, since it is larger than the sum of its proper divisors (63535937).

317679655 is an equidigital number, since it uses as much as digits as its factorization.

317679655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63535936.

The product of its digits is 1190700, while the sum is 49.

The square root of 317679655 is about 17823.5702091360. The cubic root of 317679655 is about 682.3331440561. Note that the first 3 decimals are identical.

The spelling of 317679655 in words is "three hundred seventeen million, six hundred seventy-nine thousand, six hundred fifty-five".