492130217 has 8 divisors (see below), whose sum is σ = 498083400. Its totient is φ = 486186624.

The previous prime is 492130201. The next prime is 492130237. The reversal of 492130217 is 712031294.

It can be written as a sum of positive squares in 4 ways, for example, as 21196816 + 470933401 = 4604^2 + 21701^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 492130217 - 2⁴ = 492130201 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 492130217.

It is not an unprimeable number, because it can be changed into a prime (492130237) 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 7 ways as a sum of consecutive naturals, for example, 200723 + ... + 203159.

It is an arithmetic number, because the mean of its divisors is an integer number (62260425).

Almost surely, 2^492130217 is an apocalyptic number.

It is an amenable number.

492130217 is a deficient number, since it is larger than the sum of its proper divisors (5953183).

492130217 is a wasteful number, since it uses less digits than its factorization.

492130217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4795.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 492130217 is about 22184.0081364933. The cubic root of 492130217 is about 789.5143182519.

The spelling of 492130217 in words is "four hundred ninety-two million, one hundred thirty thousand, two hundred seventeen".