505699 has 8 divisors (see below), whose sum is σ = 541728. Its totient is φ = 470400.

The previous prime is 505693. The next prime is 505709. The reversal of 505699 is 996505.

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

It is a cyclic number.

It is not a de Polignac number, because 505699 - 2³ = 505691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505691) 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 7 ways as a sum of consecutive naturals, for example, 2469 + ... + 2665.

It is an arithmetic number, because the mean of its divisors is an integer number (67716).

2⁵⁰⁵⁶⁹⁹ is an apocalyptic number.

505699 is a deficient number, since it is larger than the sum of its proper divisors (36029).

505699 is a wasteful number, since it uses less digits than its factorization.

505699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 505699 is about 711.1251647917. The cubic root of 505699 is about 79.6704673836.

The spelling of 505699 in words is "five hundred five thousand, six hundred ninety-nine".