200906687 has 2 divisors, whose sum is σ = 200906688. Its totient is φ = 200906686.

The previous prime is 200906677. The next prime is 200906701. The reversal of 200906687 is 786609002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200906687 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200906687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200906647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100453343 + 100453344.

It is an arithmetic number, because the mean of its divisors is an integer number (100453344).

Almost surely, 2^200906687 is an apocalyptic number.

200906687 is a deficient number, since it is larger than the sum of its proper divisors (1).

200906687 is an equidigital number, since it uses as much as digits as its factorization.

200906687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 200906687 is about 14174.1556009520. The cubic root of 200906687 is about 585.6859385193.

The spelling of 200906687 in words is "two hundred million, nine hundred six thousand, six hundred eighty-seven".