5643418 has 32 divisors (see below), whose sum is σ = 10160640. Its totient is φ = 2320560.

The previous prime is 5643413. The next prime is 5643427. The reversal of 5643418 is 8143465.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 5643418.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643413) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9321 + ... + 9907.

It is an arithmetic number, because the mean of its divisors is an integer number (317520).

Almost surely, 2^5643418 is an apocalyptic number.

5643418 is a deficient number, since it is larger than the sum of its proper divisors (4517222).

5643418 is a wasteful number, since it uses less digits than its factorization.

5643418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642.

The product of its digits is 11520, while the sum is 31.

The square root of 5643418 is about 2375.5879272298. The cubic root of 5643418 is about 178.0385600088.

The spelling of 5643418 in words is "five million, six hundred forty-three thousand, four hundred eighteen".