506658 has 8 divisors (see below), whose sum is σ = 1013328. Its totient is φ = 168884.

The previous prime is 506647. The next prime is 506663. The reversal of 506658 is 856605.

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

506658 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 506658.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 42216 + ... + 42227.

It is an arithmetic number, because the mean of its divisors is an integer number (126666).

2⁵⁰⁶⁶⁵⁸ is an apocalyptic number.

506658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

506658 is a wasteful number, since it uses less digits than its factorization.

506658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84448.

The product of its (nonzero) digits is 7200, while the sum is 30.

The square root of 506658 is about 711.7991289683. The cubic root of 506658 is about 79.7207975418.

The spelling of 506658 in words is "five hundred six thousand, six hundred fifty-eight".