507999 has 8 divisors (see below), whose sum is σ = 680752. Its totient is φ = 336960.

The previous prime is 507979. The next prime is 508009. The reversal of 507999 is 999705.

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

It is not a de Polignac number, because 507999 - 2⁸ = 507743 is a prime.

It is a Duffinian number.

507999 is a modest number, since divided by 999 gives 507 as remainder.

It is a plaindrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669 + ... + 1209.

It is an arithmetic number, because the mean of its divisors is an integer number (85094).

2⁵⁰⁷⁹⁹⁹ is an apocalyptic number.

507999 is a deficient number, since it is larger than the sum of its proper divisors (172753).

507999 is a wasteful number, since it uses less digits than its factorization.

507999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857.

The product of its (nonzero) digits is 25515, while the sum is 39.

The square root of 507999 is about 712.7404857310. The cubic root of 507999 is about 79.7910694084.

The spelling of 507999 in words is "five hundred seven thousand, nine hundred ninety-nine".