273920849 has 2 divisors, whose sum is σ = 273920850. Its totient is φ = 273920848.

The previous prime is 273920821. The next prime is 273920897. The reversal of 273920849 is 948029372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 273670849 + 250000 = 16543^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 273920849 - 2¹⁶ = 273855313 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (273920809) 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, 136960424 + 136960425.

It is an arithmetic number, because the mean of its divisors is an integer number (136960425).

Almost surely, 2^273920849 is an apocalyptic number.

It is an amenable number.

273920849 is a deficient number, since it is larger than the sum of its proper divisors (1).

273920849 is an equidigital number, since it uses as much as digits as its factorization.

273920849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 273920849 is about 16550.5543411694. The cubic root of 273920849 is about 649.4439813145.

The spelling of 273920849 in words is "two hundred seventy-three million, nine hundred twenty thousand, eight hundred forty-nine".