505417 has 6 divisors (see below), whose sum is σ = 555674. Its totient is φ = 459360.

The previous prime is 505411. The next prime is 505429. The reversal of 505417 is 714505.

It can be written as a sum of positive squares in only one way, i.e., 495616 + 9801 = 704^2 + 99^2 .

It is not a de Polignac number, because 505417 - 2³ = 505409 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 505417.

It is not an unprimeable number, because it can be changed into a prime (505411) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1968 + ... + 2209.

2⁵⁰⁵⁴¹⁷ is an apocalyptic number.

It is an amenable number.

505417 is a deficient number, since it is larger than the sum of its proper divisors (50257).

505417 is a wasteful number, since it uses less digits than its factorization.

505417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4199 (or 4188 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 505417 is about 710.9268598105. The cubic root of 505417 is about 79.6556553780.

The spelling of 505417 in words is "five hundred five thousand, four hundred seventeen".