5665864 has 16 divisors (see below), whose sum is σ = 10724400. Its totient is φ = 2806032.

The previous prime is 5665853. The next prime is 5665883. The reversal of 5665864 is 4685665.

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, 2454 + ... + 4165.

It is an arithmetic number, because the mean of its divisors is an integer number (670275).

Almost surely, 2^5665864 is an apocalyptic number.

It is an amenable number.

5665864 is a deficient number, since it is larger than the sum of its proper divisors (5058536).

5665864 is a wasteful number, since it uses less digits than its factorization.

5665864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6732 (or 6728 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 5665864 is about 2380.3075431549. The cubic root of 5665864 is about 178.2742899034.

The spelling of 5665864 in words is "five million, six hundred sixty-five thousand, eight hundred sixty-four".