506287 has 4 divisors (see below), whose sum is σ = 508360. Its totient is φ = 504216.

The previous prime is 506281. The next prime is 506291. The reversal of 506287 is 782605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 782605 = 5 ⋅156521.

It is a cyclic number.

It is not a de Polignac number, because 506287 - 2¹⁵ = 473519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 612 + ... + 1177.

It is an arithmetic number, because the mean of its divisors is an integer number (127090).

2⁵⁰⁶²⁸⁷ is an apocalyptic number.

506287 is a deficient number, since it is larger than the sum of its proper divisors (2073).

506287 is a wasteful number, since it uses less digits than its factorization.

506287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 506287 is about 711.5384740125. The cubic root of 506287 is about 79.7013342892.

The spelling of 506287 in words is "five hundred six thousand, two hundred eighty-seven".