517068730 has 8 divisors (see below), whose sum is σ = 930723732. Its totient is φ = 206827488.

The previous prime is 517068703. The next prime is 517068731. The reversal of 517068730 is 37860715.

It can be written as a sum of positive squares in 2 ways, for example, as 494306289 + 22762441 = 22233^2 + 4771^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 517068730.

It is not an unprimeable number, because it can be changed into a prime (517068731) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 25853427 + ... + 25853446.

Almost surely, 2^517068730 is an apocalyptic number.

517068730 is a deficient number, since it is larger than the sum of its proper divisors (413655002).

517068730 is a wasteful number, since it uses less digits than its factorization.

517068730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51706880.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 517068730 is about 22739.1453225490. The cubic root of 517068730 is about 802.6312993824.

The spelling of 517068730 in words is "five hundred seventeen million, sixty-eight thousand, seven hundred thirty".