5665887 has 12 divisors (see below), whose sum is σ = 8232120. Its totient is φ = 3755088.

The previous prime is 5665883. The next prime is 5665903. The reversal of 5665887 is 7885665.

5665887 is a `hidden beast` number, since 5 + 66 + 588 + 7 = 666.

5665887 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

5665887 is an esthetic number in base 6, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 5665887 - 2² = 5665883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5665883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148 + ... + 3369.

It is an arithmetic number, because the mean of its divisors is an integer number (686010).

Almost surely, 2^5665887 is an apocalyptic number.

5665887 is a deficient number, since it is larger than the sum of its proper divisors (2566233).

5665887 is a wasteful number, since it uses less digits than its factorization.

5665887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702 (or 3699 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 5665887 is about 2380.3123744584. The cubic root of 5665887 is about 178.2745311319.

The spelling of 5665887 in words is "five million, six hundred sixty-five thousand, eight hundred eighty-seven".