68306677 has 2 divisors, whose sum is σ = 68306678. Its totient is φ = 68306676.

The previous prime is 68306669. The next prime is 68306683. The reversal of 68306677 is 77660386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47458321 + 20848356 = 6889^2 + 4566^2 .

It is a cyclic number.

It is not a de Polignac number, because 68306677 - 2³ = 68306669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68306377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34153338 + 34153339.

It is an arithmetic number, because the mean of its divisors is an integer number (34153339).

Almost surely, 2^68306677 is an apocalyptic number.

It is an amenable number.

68306677 is a deficient number, since it is larger than the sum of its proper divisors (1).

68306677 is an equidigital number, since it uses as much as digits as its factorization.

68306677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 68306677 is about 8264.7853571645. The cubic root of 68306677 is about 408.7781928700.

The spelling of 68306677 in words is "sixty-eight million, three hundred six thousand, six hundred seventy-seven".