3606444865 has 4 divisors (see below), whose sum is σ = 4327733844. Its totient is φ = 2885155888.

The previous prime is 3606444857. The next prime is 3606444883. The reversal of 3606444865 is 5684446063.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5684446063 = 5479 ⋅1037497.

It can be written as a sum of positive squares in 2 ways, for example, as 1208188081 + 2398256784 = 34759^2 + 48972^2 .

It is a cyclic number.

It is not a de Polignac number, because 3606444865 - 2³ = 3606444857 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, 360644482 + ... + 360644491.

It is an arithmetic number, because the mean of its divisors is an integer number (1081933461).

Almost surely, 2^3606444865 is an apocalyptic number.

It is an amenable number.

3606444865 is a deficient number, since it is larger than the sum of its proper divisors (721288979).

3606444865 is an equidigital number, since it uses as much as digits as its factorization.

3606444865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721288978.

The product of its (nonzero) digits is 1658880, while the sum is 46.

The square root of 3606444865 is about 60053.6831926236. The cubic root of 3606444865 is about 1533.5329048942.

The spelling of 3606444865 in words is "three billion, six hundred six million, four hundred forty-four thousand, eight hundred sixty-five".