505706 has 8 divisors (see below), whose sum is σ = 764100. Its totient is φ = 251008.

The previous prime is 505693. The next prime is 505709. The reversal of 505706 is 607505.

It can be written as a sum of positive squares in 2 ways, for example, as 502681 + 3025 = 709^2 + 55^2 .

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

It is not an unprimeable number, because it can be changed into a prime (505709) 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 in 3 ways as a sum of consecutive naturals, for example, 551 + ... + 1146.

2⁵⁰⁵⁷⁰⁶ is an apocalyptic number.

505706 is a deficient number, since it is larger than the sum of its proper divisors (258394).

505706 is a wasteful number, since it uses less digits than its factorization.

505706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 505706 is about 711.1300865524. The cubic root of 505706 is about 79.6708349875.

The spelling of 505706 in words is "five hundred five thousand, seven hundred six".