6600043 has 2 divisors, whose sum is σ = 6600044. Its totient is φ = 6600042.

The previous prime is 6600031. The next prime is 6600053. The reversal of 6600043 is 3400066.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6600043 - 2¹⁷ = 6468971 is a prime.

It is equal to p₄₅₁₁₆₂ and since 6600043 and 451162 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (6600053) 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, 3300021 + 3300022.

It is an arithmetic number, because the mean of its divisors is an integer number (3300022).

Almost surely, 2^6600043 is an apocalyptic number.

6600043 is a deficient number, since it is larger than the sum of its proper divisors (1).

6600043 is an equidigital number, since it uses as much as digits as its factorization.

6600043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 6600043 is about 2569.0548845830. The cubic root of 6600043 is about 187.5781529016.

The spelling of 6600043 in words is "six million, six hundred thousand, forty-three".