506587 has 4 divisors (see below), whose sum is σ = 514216. Its totient is φ = 498960.

The previous prime is 506573. The next prime is 506591. The reversal of 506587 is 785605.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 506587 - 2⁷ = 506459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (506507) 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, 3714 + ... + 3847.

It is an arithmetic number, because the mean of its divisors is an integer number (128554).

2⁵⁰⁶⁵⁸⁷ is an apocalyptic number.

506587 is a deficient number, since it is larger than the sum of its proper divisors (7629).

506587 is an equidigital number, since it uses as much as digits as its factorization.

506587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7628.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 506587 is about 711.7492535999. The cubic root of 506587 is about 79.7170735037.

The spelling of 506587 in words is "five hundred six thousand, five hundred eighty-seven".