68749 has 2 divisors, whose sum is σ = 68750. Its totient is φ = 68748.

The previous prime is 68743. The next prime is 68767. The reversal of 68749 is 94786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44100 + 24649 = 210^2 + 157^2 .

It is a cyclic number.

It is not a de Polignac number, because 68749 - 2¹¹ = 66701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68743) 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, 34374 + 34375.

It is an arithmetic number, because the mean of its divisors is an integer number (34375).

2⁶⁸⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

68749 is a deficient number, since it is larger than the sum of its proper divisors (1).

68749 is an equidigital number, since it uses as much as digits as its factorization.

68749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 68749 is about 262.2003051104. The cubic root of 68749 is about 40.9658649057.

The spelling of 68749 in words is "sixty-eight thousand, seven hundred forty-nine".