485405 has 4 divisors (see below), whose sum is σ = 582492. Its totient is φ = 388320.

The previous prime is 485389. The next prime is 485411. The reversal of 485405 is 504584.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 334084 + 151321 = 578^2 + 389^2 .

It is not a de Polignac number, because 485405 - 2⁴ = 485389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48536 + ... + 48545.

It is an arithmetic number, because the mean of its divisors is an integer number (145623).

2⁴⁸⁵⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

485405 is a deficient number, since it is larger than the sum of its proper divisors (97087).

485405 is an equidigital number, since it uses as much as digits as its factorization.

485405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97086.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 485405 is about 696.7101262362. The cubic root of 485405 is about 78.5901435152.

Adding to 485405 its reverse (504584), we get a palindrome (989989).

The spelling of 485405 in words is "four hundred eighty-five thousand, four hundred five".