493666249 has 2 divisors, whose sum is σ = 493666250. Its totient is φ = 493666248.

The previous prime is 493666241. The next prime is 493666259. The reversal of 493666249 is 942666394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 371718400 + 121947849 = 19280^2 + 11043^2 .

It is a cyclic number.

It is not a de Polignac number, because 493666249 - 2³ = 493666241 is a prime.

It is not a weakly prime, because it can be changed into another prime (493666241) 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, 246833124 + 246833125.

It is an arithmetic number, because the mean of its divisors is an integer number (246833125).

Almost surely, 2^493666249 is an apocalyptic number.

It is an amenable number.

493666249 is a deficient number, since it is larger than the sum of its proper divisors (1).

493666249 is an equidigital number, since it uses as much as digits as its factorization.

493666249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 49.

The square root of 493666249 is about 22218.6014186312. The cubic root of 493666249 is about 790.3348732524.

The spelling of 493666249 in words is "four hundred ninety-three million, six hundred sixty-six thousand, two hundred forty-nine".