200643343 has 2 divisors, whose sum is σ = 200643344. Its totient is φ = 200643342.

The previous prime is 200643337. The next prime is 200643353. The reversal of 200643343 is 343346002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200643343 - 2²¹ = 198546191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200643353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100321671 + 100321672.

It is an arithmetic number, because the mean of its divisors is an integer number (100321672).

Almost surely, 2^200643343 is an apocalyptic number.

200643343 is a deficient number, since it is larger than the sum of its proper divisors (1).

200643343 is an equidigital number, since it uses as much as digits as its factorization.

200643343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 200643343 is about 14164.8629714516. The cubic root of 200643343 is about 585.4299252770.

Adding to 200643343 its reverse (343346002), we get a palindrome (543989345).

The spelling of 200643343 in words is "two hundred million, six hundred forty-three thousand, three hundred forty-three".