200688769 has 2 divisors, whose sum is σ = 200688770. Its totient is φ = 200688768.

The previous prime is 200688751. The next prime is 200688797. The reversal of 200688769 is 967886002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192848769 + 7840000 = 13887^2 + 2800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200688769 is a prime.

It is a super-2 number, since 2×200688769² = 80551964005470722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (200688569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100344384 + 100344385.

It is an arithmetic number, because the mean of its divisors is an integer number (100344385).

Almost surely, 2^200688769 is an apocalyptic number.

It is an amenable number.

200688769 is a deficient number, since it is larger than the sum of its proper divisors (1).

200688769 is an equidigital number, since it uses as much as digits as its factorization.

200688769 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 200688769 is about 14166.4663554466. The cubic root of 200688769 is about 585.4741027259.

The spelling of 200688769 in words is "two hundred million, six hundred eighty-eight thousand, seven hundred sixty-nine".