200406709 has 2 divisors, whose sum is σ = 200406710. Its totient is φ = 200406708.

The previous prime is 200406697. The next prime is 200406757. The reversal of 200406709 is 907604002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124768900 + 75637809 = 11170^2 + 8697^2 .

It is a cyclic number.

It is not a de Polignac number, because 200406709 - 2²¹ = 198309557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200406799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100203354 + 100203355.

It is an arithmetic number, because the mean of its divisors is an integer number (100203355).

Almost surely, 2^200406709 is an apocalyptic number.

It is an amenable number.

200406709 is a deficient number, since it is larger than the sum of its proper divisors (1).

200406709 is an equidigital number, since it uses as much as digits as its factorization.

200406709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 200406709 is about 14156.5076554919. The cubic root of 200406709 is about 585.1996873513.

The spelling of 200406709 in words is "two hundred million, four hundred six thousand, seven hundred nine".