3605005 has 8 divisors (see below), whose sum is σ = 4371192. Its totient is φ = 2853888.

The previous prime is 3604999. The next prime is 3605027. The reversal of 3605005 is 5005063.

It can be written as a sum of positive squares in 4 ways, for example, as 2601 + 3602404 = 51^2 + 1898^2 .

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 3605005 - 2²¹ = 1507853 is a prime.

It is a super-2 number, since 2×3605005² = 25992122100050, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 3232 + ... + 4201.

It is an arithmetic number, because the mean of its divisors is an integer number (546399).

Almost surely, 2^3605005 is an apocalyptic number.

It is an amenable number.

3605005 is a deficient number, since it is larger than the sum of its proper divisors (766187).

3605005 is an equidigital number, since it uses as much as digits as its factorization.

3605005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7535.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 3605005 is about 1898.6850713059. The cubic root of 3605005 is about 153.3328791207.

The spelling of 3605005 in words is "three million, six hundred five thousand, five".