3605205 has 8 divisors (see below), whose sum is σ = 5768352. Its totient is φ = 1922768.

The previous prime is 3605201. The next prime is 3605221. The reversal of 3605205 is 5025063.

3605205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3605205 - 2² = 3605201 is a prime.

3605205 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3605201) 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 7 ways as a sum of consecutive naturals, for example, 120159 + ... + 120188.

It is an arithmetic number, because the mean of its divisors is an integer number (721044).

Almost surely, 2^3605205 is an apocalyptic number.

It is an amenable number.

3605205 is a deficient number, since it is larger than the sum of its proper divisors (2163147).

3605205 is a wasteful number, since it uses less digits than its factorization.

3605205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240355.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 3605205 is about 1898.7377386043. The cubic root of 3605205 is about 153.3357146238.

It can be divided in two parts, 360 and 5205, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 3605205 in words is "three million, six hundred five thousand, two hundred five".