200601689 has 2 divisors, whose sum is σ = 200601690. Its totient is φ = 200601688.

The previous prime is 200601673. The next prime is 200601701. The reversal of 200601689 is 986106002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114854089 + 85747600 = 10717^2 + 9260^2 .

It is a cyclic number.

It is not a de Polignac number, because 200601689 - 2⁴ = 200601673 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (200601629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100300844 + 100300845.

It is an arithmetic number, because the mean of its divisors is an integer number (100300845).

Almost surely, 2^200601689 is an apocalyptic number.

It is an amenable number.

200601689 is a deficient number, since it is larger than the sum of its proper divisors (1).

200601689 is an equidigital number, since it uses as much as digits as its factorization.

200601689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 200601689 is about 14163.3925667546. The cubic root of 200601689 is about 585.3894102925.

The spelling of 200601689 in words is "two hundred million, six hundred one thousand, six hundred eighty-nine".