68382661 has 2 divisors, whose sum is σ = 68382662. Its totient is φ = 68382660.

The previous prime is 68382649. The next prime is 68382673. The reversal of 68382661 is 16628386.

It is a balanced prime because it is at equal distance from previous prime (68382649) and next prime (68382673).

It can be written as a sum of positive squares in only one way, i.e., 57532225 + 10850436 = 7585^2 + 3294^2 .

It is a cyclic number.

It is not a de Polignac number, because 68382661 - 2⁷ = 68382533 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 (68382641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34191330 + 34191331.

It is an arithmetic number, because the mean of its divisors is an integer number (34191331).

Almost surely, 2^68382661 is an apocalyptic number.

It is an amenable number.

68382661 is a deficient number, since it is larger than the sum of its proper divisors (1).

68382661 is an equidigital number, since it uses as much as digits as its factorization.

68382661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 40.

The square root of 68382661 is about 8269.3809320892. The cubic root of 68382661 is about 408.9297109620.

The spelling of 68382661 in words is "sixty-eight million, three hundred eighty-two thousand, six hundred sixty-one".