492217717 has 4 divisors (see below), whose sum is σ = 496573740. Its totient is φ = 487861696.

The previous prime is 492217703. The next prime is 492217727. The reversal of 492217717 is 717712294.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13439556 + 478778161 = 3666^2 + 21881^2 .

It is a cyclic number.

It is not a de Polignac number, because 492217717 - 2¹⁹ = 491693429 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 492217717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (492217727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2177842 + ... + 2178067.

It is an arithmetic number, because the mean of its divisors is an integer number (124143435).

Almost surely, 2^492217717 is an apocalyptic number.

It is an amenable number.

492217717 is a deficient number, since it is larger than the sum of its proper divisors (4356023).

492217717 is a wasteful number, since it uses less digits than its factorization.

492217717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4356022.

The product of its digits is 49392, while the sum is 40.

The square root of 492217717 is about 22185.9801902012. The cubic root of 492217717 is about 789.5611069585.

The spelling of 492217717 in words is "four hundred ninety-two million, two hundred seventeen thousand, seven hundred seventeen".