5605865 has 4 divisors (see below), whose sum is σ = 6727044. Its totient is φ = 4484688.

The previous prime is 5605849. The next prime is 5605871. The reversal of 5605865 is 5685065.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3748096 + 1857769 = 1936^2 + 1363^2 .

It is a cyclic number.

It is not a de Polignac number, because 5605865 - 2⁴ = 5605849 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, 560582 + ... + 560591.

It is an arithmetic number, because the mean of its divisors is an integer number (1681761).

Almost surely, 2^5605865 is an apocalyptic number.

It is an amenable number.

5605865 is a deficient number, since it is larger than the sum of its proper divisors (1121179).

5605865 is a wasteful number, since it uses less digits than its factorization.

5605865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121178.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 5605865 is about 2367.6707963735. The cubic root of 5605865 is about 177.6427734441.

The spelling of 5605865 in words is "five million, six hundred five thousand, eight hundred sixty-five".