505799 has 8 divisors (see below), whose sum is σ = 608640. Its totient is φ = 410616.

The previous prime is 505781. The next prime is 505811. The reversal of 505799 is 997505.

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

It is a cyclic number.

It is not a de Polignac number, because 505799 - 2¹² = 501703 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505709) 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, 1769 + ... + 2034.

It is an arithmetic number, because the mean of its divisors is an integer number (76080).

2⁵⁰⁵⁷⁹⁹ is an apocalyptic number.

505799 is a deficient number, since it is larger than the sum of its proper divisors (102841).

505799 is a wasteful number, since it uses less digits than its factorization.

505799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829.

The product of its (nonzero) digits is 14175, while the sum is 35.

The square root of 505799 is about 711.1954724265. The cubic root of 505799 is about 79.6757185453.

The spelling of 505799 in words is "five hundred five thousand, seven hundred ninety-nine".