516387 has 8 divisors (see below), whose sum is σ = 704704. Its totient is φ = 336168.

The previous prime is 516377. The next prime is 516391. The reversal of 516387 is 783615.

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

It is not a de Polignac number, because 516387 - 2⁴ = 516371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (516377) 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, 1873 + ... + 2130.

It is an arithmetic number, because the mean of its divisors is an integer number (88088).

2⁵¹⁶³⁸⁷ is an apocalyptic number.

516387 is a deficient number, since it is larger than the sum of its proper divisors (188317).

516387 is a wasteful number, since it uses less digits than its factorization.

516387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049.

The product of its digits is 5040, while the sum is 30.

The square root of 516387 is about 718.6007236289. The cubic root of 516387 is about 80.2278400786.

It can be divided in two parts, 516 and 387, that added together give a triangular number (903 = T₄₂).

The spelling of 516387 in words is "five hundred sixteen thousand, three hundred eighty-seven".