200869 has 2 divisors, whose sum is σ = 200870. Its totient is φ = 200868.

The previous prime is 200867. The next prime is 200881. The reversal of 200869 is 968002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191844 + 9025 = 438^2 + 95^2 .

It is a cyclic number.

It is not a de Polignac number, because 200869 - 2¹ = 200867 is a prime.

It is a super-2 number, since 2×200869² = 80696710322, which contains 22 as substring.

Together with 200867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100434 + 100435.

It is an arithmetic number, because the mean of its divisors is an integer number (100435).

2²⁰⁰⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

200869 is a deficient number, since it is larger than the sum of its proper divisors (1).

200869 is an equidigital number, since it uses as much as digits as its factorization.

200869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 200869 is about 448.1841139532. The cubic root of 200869 is about 58.5649314342.

The spelling of 200869 in words is "two hundred thousand, eight hundred sixty-nine".