208849049 has 2 divisors, whose sum is σ = 208849050. Its totient is φ = 208849048.

The previous prime is 208849027. The next prime is 208849073. The reversal of 208849049 is 940948802.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144769024 + 64080025 = 12032^2 + 8005^2 .

It is a cyclic number.

It is not a de Polignac number, because 208849049 - 2¹⁶ = 208783513 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (208849009) 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, 104424524 + 104424525.

It is an arithmetic number, because the mean of its divisors is an integer number (104424525).

Almost surely, 2^208849049 is an apocalyptic number.

It is an amenable number.

208849049 is a deficient number, since it is larger than the sum of its proper divisors (1).

208849049 is an equidigital number, since it uses as much as digits as its factorization.

208849049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 208849049 is about 14451.6106022824. The cubic root of 208849049 is about 593.3043065027.

The spelling of 208849049 in words is "two hundred eight million, eight hundred forty-nine thousand, forty-nine".