5646943 has 2 divisors, whose sum is σ = 5646944. Its totient is φ = 5646942.

The previous prime is 5646919. The next prime is 5646959. The reversal of 5646943 is 3496465.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5646943 - 2¹³ = 5638751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5646973) 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, 2823471 + 2823472.

It is an arithmetic number, because the mean of its divisors is an integer number (2823472).

Almost surely, 2^5646943 is an apocalyptic number.

5646943 is a deficient number, since it is larger than the sum of its proper divisors (1).

5646943 is an equidigital number, since it uses as much as digits as its factorization.

5646943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 37.

The square root of 5646943 is about 2376.3297330127. The cubic root of 5646943 is about 178.0756211953.

The spelling of 5646943 in words is "five million, six hundred forty-six thousand, nine hundred forty-three".