505946 has 16 divisors (see below), whose sum is σ = 881280. Its totient is φ = 213360.

The previous prime is 505927. The next prime is 505949. The reversal of 505946 is 649505.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (505949) 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, 740 + ... + 1248.

It is an arithmetic number, because the mean of its divisors is an integer number (55080).

2⁵⁰⁵⁹⁴⁶ is an apocalyptic number.

505946 is a deficient number, since it is larger than the sum of its proper divisors (375334).

505946 is a wasteful number, since it uses less digits than its factorization.

505946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 505946 is about 711.2988120333. The cubic root of 505946 is about 79.6834364966.

The spelling of 505946 in words is "five hundred five thousand, nine hundred forty-six".