68383937 has 4 divisors (see below), whose sum is σ = 68426580. Its totient is φ = 68341296.

The previous prime is 68383897. The next prime is 68383957. The reversal of 68383937 is 73938386.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55965361 + 12418576 = 7481^2 + 3524^2 .

It is a cyclic number.

It is not a de Polignac number, because 68383937 - 2⁶ = 68383873 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68383891 and 68383900.

It is not an unprimeable number, because it can be changed into a prime (68383957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18818 + ... + 22155.

It is an arithmetic number, because the mean of its divisors is an integer number (17106645).

Almost surely, 2^68383937 is an apocalyptic number.

It is an amenable number.

68383937 is a deficient number, since it is larger than the sum of its proper divisors (42643).

68383937 is a wasteful number, since it uses less digits than its factorization.

68383937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42642.

The product of its digits is 653184, while the sum is 47.

The square root of 68383937 is about 8269.4580838166. The cubic root of 68383937 is about 408.9322544482.

The spelling of 68383937 in words is "sixty-eight million, three hundred eighty-three thousand, nine hundred thirty-seven".