516986 has 8 divisors (see below), whose sum is σ = 786324. Its totient is φ = 254880.

The previous prime is 516979. The next prime is 516991. The reversal of 516986 is 689615.

It can be written as a sum of positive squares in 2 ways, for example, as 516961 + 25 = 719^2 + 5^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1625 + ... + 1916.

2⁵¹⁶⁹⁸⁶ is an apocalyptic number.

516986 is a deficient number, since it is larger than the sum of its proper divisors (269338).

516986 is a wasteful number, since it uses less digits than its factorization.

516986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3616.

The product of its digits is 12960, while the sum is 35.

The square root of 516986 is about 719.0173850471. The cubic root of 516986 is about 80.2588490612.

The spelling of 516986 in words is "five hundred sixteen thousand, nine hundred eighty-six".