3605065 has 4 divisors (see below), whose sum is σ = 4326084. Its totient is φ = 2884048.

The previous prime is 3605059. The next prime is 3605081. The reversal of 3605065 is 5605063.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5605063 = 853 ⋅6571.

It can be written as a sum of positive squares in 2 ways, for example, as 2368521 + 1236544 = 1539^2 + 1112^2 .

It is a cyclic number.

It is not a de Polignac number, because 3605065 - 2³ = 3605057 is a prime.

It is a Duffinian 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, 360502 + ... + 360511.

It is an arithmetic number, because the mean of its divisors is an integer number (1081521).

Almost surely, 2^3605065 is an apocalyptic number.

It is an amenable number.

3605065 is a deficient number, since it is larger than the sum of its proper divisors (721019).

3605065 is an equidigital number, since it uses as much as digits as its factorization.

3605065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721018.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 3605065 is about 1898.7008716488. The cubic root of 3605065 is about 153.3337297826. Note that the first 3 decimals are identical.

The spelling of 3605065 in words is "three million, six hundred five thousand, sixty-five".