494831317 has 4 divisors (see below), whose sum is σ = 494934336. Its totient is φ = 494728300.

The previous prime is 494831299. The next prime is 494831327. The reversal of 494831317 is 713138494.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 713138494 = 2 ⋅356569247.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494831317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 494831317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494831327) 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, 43933 + ... + 54034.

It is an arithmetic number, because the mean of its divisors is an integer number (123733584).

Almost surely, 2^494831317 is an apocalyptic number.

It is an amenable number.

494831317 is a deficient number, since it is larger than the sum of its proper divisors (103019).

494831317 is an equidigital number, since it uses as much as digits as its factorization.

494831317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103018.

The product of its digits is 72576, while the sum is 40.

The square root of 494831317 is about 22244.8042697615. The cubic root of 494831317 is about 790.9561232383.

The spelling of 494831317 in words is "four hundred ninety-four million, eight hundred thirty-one thousand, three hundred seventeen".