505828 has 6 divisors (see below), whose sum is σ = 885206. Its totient is φ = 252912.

The previous prime is 505823. The next prime is 505867. The reversal of 505828 is 828505.

It can be written as a sum of positive squares in only one way, i.e., 381924 + 123904 = 618^2 + 352^2 .

It is a junction number, because it is equal to n+sod(n) for n = 505796 and 505805.

It is not an unprimeable number, because it can be changed into a prime (505823) by changing a digit.

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 as a sum of consecutive naturals, namely, 63225 + ... + 63232.

2⁵⁰⁵⁸²⁸ is an apocalyptic number.

It is an amenable number.

505828 is a deficient number, since it is larger than the sum of its proper divisors (379378).

505828 is a wasteful number, since it uses less digits than its factorization.

505828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126461 (or 126459 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 505828 is about 711.2158603406. The cubic root of 505828 is about 79.6772412527.

The spelling of 505828 in words is "five hundred five thousand, eight hundred twenty-eight".