516687 has 8 divisors (see below), whose sum is σ = 693936. Its totient is φ = 341952.

The previous prime is 516679. The next prime is 516689. The reversal of 516687 is 786615.

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

It is not a de Polignac number, because 516687 - 2³ = 516679 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 516687.

It is not an unprimeable number, because it can be changed into a prime (516689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78 + ... + 1019.

It is an arithmetic number, because the mean of its divisors is an integer number (86742).

2⁵¹⁶⁶⁸⁷ is an apocalyptic number.

516687 is a deficient number, since it is larger than the sum of its proper divisors (177249).

516687 is a wasteful number, since it uses less digits than its factorization.

516687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257.

The product of its digits is 10080, while the sum is 33.

The square root of 516687 is about 718.8094323254. The cubic root of 516687 is about 80.2433734496.

It can be divided in two parts, 5166 and 87, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 516687 in words is "five hundred sixteen thousand, six hundred eighty-seven".