200840671 has 2 divisors, whose sum is σ = 200840672. Its totient is φ = 200840670.

The previous prime is 200840657. The next prime is 200840701. The reversal of 200840671 is 176048002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200840671 - 2¹⁹ = 200316383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200846671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100420335 + 100420336.

It is an arithmetic number, because the mean of its divisors is an integer number (100420336).

Almost surely, 2^200840671 is an apocalyptic number.

200840671 is a deficient number, since it is larger than the sum of its proper divisors (1).

200840671 is an equidigital number, since it uses as much as digits as its factorization.

200840671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 200840671 is about 14171.8266641954. The cubic root of 200840671 is about 585.6217812411.

Adding to 200840671 its reverse (176048002), we get a palindrome (376888673).

The spelling of 200840671 in words is "two hundred million, eight hundred forty thousand, six hundred seventy-one".