68744 has 16 divisors (see below), whose sum is σ = 139020. Its totient is φ = 31680.

The previous prime is 68743. The next prime is 68749. The reversal of 68744 is 44786.

It can be written as a sum of positive squares in 2 ways, for example, as 68644 + 100 = 262^2 + 10^2 .

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (68743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227 + ... + 434.

2⁶⁸⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

68744 is an abundant number, since it is smaller than the sum of its proper divisors (70276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69510).

68744 is a wasteful number, since it uses less digits than its factorization.

68744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 676 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 68744 is about 262.1907702418. The cubic root of 68744 is about 40.9648717553.

The spelling of 68744 in words is "sixty-eight thousand, seven hundred forty-four".