516814985 has 8 divisors (see below), whose sum is σ = 620882496. Its totient is φ = 412982320.

The previous prime is 516814973. The next prime is 516815027. The reversal of 516814985 is 589418615.

It is a happy number.

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

It is not a de Polignac number, because 516814985 - 2¹⁰ = 516813961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 53831 + ... + 62700.

It is an arithmetic number, because the mean of its divisors is an integer number (77610312).

Almost surely, 2^516814985 is an apocalyptic number.

It is an amenable number.

516814985 is a deficient number, since it is larger than the sum of its proper divisors (104067511).

516814985 is a wasteful number, since it uses less digits than its factorization.

516814985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117423.

The product of its digits is 345600, while the sum is 47.

The square root of 516814985 is about 22733.5651625520. The cubic root of 516814985 is about 802.4999841487.

The spelling of 516814985 in words is "five hundred sixteen million, eight hundred fourteen thousand, nine hundred eighty-five".