200987 has 2 divisors, whose sum is σ = 200988.
Its totient is φ = 200986.
The previous prime is 200983. The next prime is 200989. The reversal of 200987 is 789002.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 200987 - 22 = 200983 is a prime.
Together with 200989, it forms a pair of twin primes.
It is a Chen prime.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 200987.
It is not a weakly prime, because it can be changed into another prime (200983) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100493 + 100494.
It is an arithmetic number, because the mean of its divisors is an integer number (100494).
2200987 is an apocalyptic number.
200987 is a deficient number, since it is larger than the sum of its proper divisors (1).
200987 is an equidigital number, since it uses as much as digits as its factorization.
200987 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1008, while the sum is 26.
The square root of 200987 is about 448.3157369533.
The cubic root of 200987 is about 58.5763971310.
Adding to 200987 its reverse (789002), we get a palindrome (989989).
The spelling of 200987 in words is "two hundred thousand, nine hundred eighty-seven".