68307361 has 2 divisors, whose sum is σ = 68307362. Its totient is φ = 68307360.

The previous prime is 68307359. The next prime is 68307367. The reversal of 68307361 is 16370386.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66259600 + 2047761 = 8140^2 + 1431^2 .

It is a cyclic number.

It is not a de Polignac number, because 68307361 - 2¹ = 68307359 is a prime.

Together with 68307359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (68307367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34153680 + 34153681.

It is an arithmetic number, because the mean of its divisors is an integer number (34153681).

Almost surely, 2^68307361 is an apocalyptic number.

It is an amenable number.

68307361 is a deficient number, since it is larger than the sum of its proper divisors (1).

68307361 is an equidigital number, since it uses as much as digits as its factorization.

68307361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 68307361 is about 8264.8267374459. The cubic root of 68307361 is about 408.7795573211.

The spelling of 68307361 in words is "sixty-eight million, three hundred seven thousand, three hundred sixty-one".