200897839 has 2 divisors, whose sum is σ = 200897840. Its totient is φ = 200897838.

The previous prime is 200897833. The next prime is 200897867. The reversal of 200897839 is 938798002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200897839 - 2⁹ = 200897327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200897833) 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, 100448919 + 100448920.

It is an arithmetic number, because the mean of its divisors is an integer number (100448920).

Almost surely, 2^200897839 is an apocalyptic number.

200897839 is a deficient number, since it is larger than the sum of its proper divisors (1).

200897839 is an equidigital number, since it uses as much as digits as its factorization.

200897839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 200897839 is about 14173.8434801574. The cubic root of 200897839 is about 585.6773404560.

The spelling of 200897839 in words is "two hundred million, eight hundred ninety-seven thousand, eight hundred thirty-nine".