5665406 has 16 divisors (see below), whose sum is σ = 8985600. Its totient is φ = 2673528.

The previous prime is 5665399. The next prime is 5665417. The reversal of 5665406 is 6045665.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2855 + ... + 4413.

It is an arithmetic number, because the mean of its divisors is an integer number (561600).

Almost surely, 2^5665406 is an apocalyptic number.

5665406 is a deficient number, since it is larger than the sum of its proper divisors (3320194).

5665406 is a wasteful number, since it uses less digits than its factorization.

5665406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 5665406 is about 2380.2113351549. The cubic root of 5665406 is about 178.2694861745.

The spelling of 5665406 in words is "five million, six hundred sixty-five thousand, four hundred six".