507987 has 6 divisors (see below), whose sum is σ = 733772. Its totient is φ = 338652.

The previous prime is 507979. The next prime is 508009. The reversal of 507987 is 789705.

It is not a de Polignac number, because 507987 - 2³ = 507979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28213 + ... + 28230.

2⁵⁰⁷⁹⁸⁷ is an apocalyptic number.

507987 is a deficient number, since it is larger than the sum of its proper divisors (225785).

507987 is a wasteful number, since it uses less digits than its factorization.

507987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56449 (or 56446 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 507987 is about 712.7320674700. The cubic root of 507987 is about 79.7904411261.

It can be divided in two parts, 50798 and 7, that added together give a palindrome (50805).

The spelling of 507987 in words is "five hundred seven thousand, nine hundred eighty-seven".