505982 has 8 divisors (see below), whose sum is σ = 783552. Its totient is φ = 244800.

The previous prime is 505979. The next prime is 506047. The reversal of 505982 is 289505.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4019 + ... + 4142.

It is an arithmetic number, because the mean of its divisors is an integer number (97944).

2⁵⁰⁵⁹⁸² is an apocalyptic number.

505982 is a deficient number, since it is larger than the sum of its proper divisors (277570).

505982 is a wasteful number, since it uses less digits than its factorization.

505982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8194.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 505982 is about 711.3241174036. The cubic root of 505982 is about 79.6853263793.

The spelling of 505982 in words is "five hundred five thousand, nine hundred eighty-two".