68449 has 2 divisors, whose sum is σ = 68450. Its totient is φ = 68448.

The previous prime is 68447. The next prime is 68473. The reversal of 68449 is 94486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42849 + 25600 = 207^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 68449 - 2¹ = 68447 is a prime.

Together with 68447, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 6⁴ + 8³ + 4⁵ + 4⁸ + 9² .

68449 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 68449.

It is not a weakly prime, because it can be changed into another prime (68443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34224 + 34225.

It is an arithmetic number, because the mean of its divisors is an integer number (34225).

2⁶⁸⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

68449 is a deficient number, since it is larger than the sum of its proper divisors (1).

68449 is an equidigital number, since it uses as much as digits as its factorization.

68449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 68449 is about 261.6275979326. The cubic root of 68449 is about 40.9061904416.

The spelling of 68449 in words is "sixty-eight thousand, four hundred forty-nine".