68680037 has 2 divisors, whose sum is σ = 68680038. Its totient is φ = 68680036.

The previous prime is 68680021. The next prime is 68680061. The reversal of 68680037 is 73008686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52041796 + 16638241 = 7214^2 + 4079^2 .

It is a cyclic number.

It is not a de Polignac number, because 68680037 - 2⁴ = 68680021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68680637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34340018 + 34340019.

It is an arithmetic number, because the mean of its divisors is an integer number (34340019).

Almost surely, 2^68680037 is an apocalyptic number.

It is an amenable number.

68680037 is a deficient number, since it is larger than the sum of its proper divisors (1).

68680037 is an equidigital number, since it uses as much as digits as its factorization.

68680037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 68680037 is about 8287.3419743607. The cubic root of 68680037 is about 409.5216252892.

The spelling of 68680037 in words is "sixty-eight million, six hundred eighty thousand, thirty-seven".