605605 has 32 divisors (see below), whose sum is σ = 983808. Its totient is φ = 348480.

The previous prime is 605603. The next prime is 605609. The reversal of 605605 is 506506.

It is not a de Polignac number, because 605605 - 2¹ = 605603 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605603) 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 31 ways as a sum of consecutive naturals, for example, 46579 + ... + 46591.

It is an arithmetic number, because the mean of its divisors is an integer number (30744).

2⁶⁰⁵⁶⁰⁵ is an apocalyptic number.

605605 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

605605 is a deficient number, since it is larger than the sum of its proper divisors (378203).

605605 is a wasteful number, since it uses less digits than its factorization.

605605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 605605 is about 778.2062708563. The cubic root of 605605 is about 84.6050884908.

Adding to 605605 its reverse (506506), we get a palindrome (1112111).

Subtracting from 605605 its reverse (506506), we obtain a palindrome (99099).

It can be divided in two parts, 60 and 5605, that added together give a palindrome (5665).

The spelling of 605605 in words is "six hundred five thousand, six hundred five".