505677 has 4 divisors (see below), whose sum is σ = 674240. Its totient is φ = 337116.

The previous prime is 505669. The next prime is 505691. The reversal of 505677 is 776505.

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 not a de Polignac number, because 505677 - 2³ = 505669 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 505677.

It is not an unprimeable number, because it can be changed into a prime (505607) 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, 84277 + ... + 84282.

It is an arithmetic number, because the mean of its divisors is an integer number (168560).

2⁵⁰⁵⁶⁷⁷ is an apocalyptic number.

It is an amenable number.

505677 is a deficient number, since it is larger than the sum of its proper divisors (168563).

505677 is a wasteful number, since it uses less digits than its factorization.

505677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168562.

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 505677 is about 711.1096961791. The cubic root of 505677 is about 79.6693120352.

The spelling of 505677 in words is "five hundred five thousand, six hundred seventy-seven".