68285837 has 2 divisors, whose sum is σ = 68285838. Its totient is φ = 68285836.

The previous prime is 68285813. The next prime is 68285857. The reversal of 68285837 is 73858286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66113161 + 2172676 = 8131^2 + 1474^2 .

It is a cyclic number.

It is not a de Polignac number, because 68285837 - 2⁶ = 68285773 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68285791 and 68285800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68285857) 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 as a sum of consecutive naturals, namely, 34142918 + 34142919.

It is an arithmetic number, because the mean of its divisors is an integer number (34142919).

Almost surely, 2^68285837 is an apocalyptic number.

It is an amenable number.

68285837 is a deficient number, since it is larger than the sum of its proper divisors (1).

68285837 is an equidigital number, since it uses as much as digits as its factorization.

68285837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 47.

The square root of 68285837 is about 8263.5244901918. The cubic root of 68285837 is about 408.7366166317.

The spelling of 68285837 in words is "sixty-eight million, two hundred eighty-five thousand, eight hundred thirty-seven".