506669 has 4 divisors (see below), whose sum is σ = 518496. Its totient is φ = 494844.

The previous prime is 506663. The next prime is 506683. The reversal of 506669 is 966605.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-506669 is a prime.

It is a super-2 number, since 2×506669² = 513426951122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (506663) 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, 5849 + ... + 5934.

It is an arithmetic number, because the mean of its divisors is an integer number (129624).

2⁵⁰⁶⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

506669 is a deficient number, since it is larger than the sum of its proper divisors (11827).

506669 is a wasteful number, since it uses less digits than its factorization.

506669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11826.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 506669 is about 711.8068558254. The cubic root of 506669 is about 79.7213744743.

The spelling of 506669 in words is "five hundred six thousand, six hundred sixty-nine".