208050649 has 2 divisors, whose sum is σ = 208050650. Its totient is φ = 208050648.

The previous prime is 208050581. The next prime is 208050653. The reversal of 208050649 is 946050802.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124657225 + 83393424 = 11165^2 + 9132^2 .

It is a cyclic number.

It is not a de Polignac number, because 208050649 - 2⁹ = 208050137 is a prime.

It is not a weakly prime, because it can be changed into another prime (208050449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104025324 + 104025325.

It is an arithmetic number, because the mean of its divisors is an integer number (104025325).

Almost surely, 2^208050649 is an apocalyptic number.

It is an amenable number.

208050649 is a deficient number, since it is larger than the sum of its proper divisors (1).

208050649 is an equidigital number, since it uses as much as digits as its factorization.

208050649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 208050649 is about 14423.9609331140. The cubic root of 208050649 is about 592.5473019141.

The spelling of 208050649 in words is "two hundred eight million, fifty thousand, six hundred forty-nine".