68073844 has 12 divisors (see below), whose sum is σ = 119187684. Its totient is φ = 34020224.

The previous prime is 68073839. The next prime is 68073847. The reversal of 68073844 is 44837086.

It can be written as a sum of positive squares in 2 ways, for example, as 29484900 + 38588944 = 5430^2 + 6212^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68073797 and 68073806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68073847) 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 in 3 ways as a sum of consecutive naturals, for example, 11724 + ... + 16540.

It is an arithmetic number, because the mean of its divisors is an integer number (9932307).

Almost surely, 2^68073844 is an apocalyptic number.

It is an amenable number.

68073844 is a deficient number, since it is larger than the sum of its proper divisors (51113840).

68073844 is a wasteful number, since it uses less digits than its factorization.

68073844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8354 (or 8352 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 68073844 is about 8250.6874865068. The cubic root of 68073844 is about 408.3132046536.

The spelling of 68073844 in words is "sixty-eight million, seventy-three thousand, eight hundred forty-four".