506636 has 12 divisors (see below), whose sum is σ = 954912. Its totient is φ = 233808.

The previous prime is 506629. The next prime is 506647. The reversal of 506636 is 636605.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 506636.

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, 4820 + ... + 4923.

It is an arithmetic number, because the mean of its divisors is an integer number (79576).

2⁵⁰⁶⁶³⁶ is an apocalyptic number.

It is an amenable number.

506636 is a deficient number, since it is larger than the sum of its proper divisors (448276).

506636 is a wasteful number, since it uses less digits than its factorization.

506636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9760 (or 9758 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 506636 is about 711.7836750025. The cubic root of 506636 is about 79.7196436517.

The spelling of 506636 in words is "five hundred six thousand, six hundred thirty-six".