5643406 has 16 divisors (see below), whose sum is σ = 8731008. Its totient is φ = 2734200.

The previous prime is 5643389. The next prime is 5643413. The reversal of 5643406 is 6043465.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17991 + ... + 18301.

It is an arithmetic number, because the mean of its divisors is an integer number (545688).

Almost surely, 2^5643406 is an apocalyptic number.

5643406 is a deficient number, since it is larger than the sum of its proper divisors (3087602).

5643406 is a wasteful number, since it uses less digits than its factorization.

5643406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 5643406 is about 2375.5854015379. The cubic root of 5643406 is about 178.0384338167.

The spelling of 5643406 in words is "five million, six hundred forty-three thousand, four hundred six".