5643389 has 2 divisors, whose sum is σ = 5643390. Its totient is φ = 5643388.

The previous prime is 5643383. The next prime is 5643413. The reversal of 5643389 is 9833465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5139289 + 504100 = 2267^2 + 710^2 .

It is a cyclic number.

It is not a de Polignac number, because 5643389 - 2⁴ = 5643373 is a prime.

It is a Chen prime.

It is equal to p₃₈₉₉₆₃ and since 5643389 and 389963 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5643383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2821694 + 2821695.

It is an arithmetic number, because the mean of its divisors is an integer number (2821695).

Almost surely, 2^5643389 is an apocalyptic number.

It is an amenable number.

5643389 is a deficient number, since it is larger than the sum of its proper divisors (1).

5643389 is an equidigital number, since it uses as much as digits as its factorization.

5643389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 38.

The square root of 5643389 is about 2375.5818234698. The cubic root of 5643389 is about 178.0382550442.

The spelling of 5643389 in words is "five million, six hundred forty-three thousand, three hundred eighty-nine".