68685037 has 2 divisors, whose sum is σ = 68685038. Its totient is φ = 68685036.

The previous prime is 68685017. The next prime is 68685041. The reversal of 68685037 is 73058686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49970761 + 18714276 = 7069^2 + 4326^2 .

It is a cyclic number.

It is not a de Polignac number, because 68685037 - 2¹⁹ = 68160749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 68684984 and 68685002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68685007) 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 as a sum of consecutive naturals, namely, 34342518 + 34342519.

It is an arithmetic number, because the mean of its divisors is an integer number (34342519).

Almost surely, 2^68685037 is an apocalyptic number.

It is an amenable number.

68685037 is a deficient number, since it is larger than the sum of its proper divisors (1).

68685037 is an equidigital number, since it uses as much as digits as its factorization.

68685037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 68685037 is about 8287.6436337478. The cubic root of 68685037 is about 409.5315629583.

The spelling of 68685037 in words is "sixty-eight million, six hundred eighty-five thousand, thirty-seven".