68319077 has 2 divisors, whose sum is σ = 68319078. Its totient is φ = 68319076.

The previous prime is 68319049. The next prime is 68319089. The reversal of 68319077 is 77091386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47761921 + 20557156 = 6911^2 + 4534^2 .

It is a cyclic number.

It is not a de Polignac number, because 68319077 - 2⁸ = 68318821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68319007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34159538 + 34159539.

It is an arithmetic number, because the mean of its divisors is an integer number (34159539).

Almost surely, 2^68319077 is an apocalyptic number.

It is an amenable number.

68319077 is a deficient number, since it is larger than the sum of its proper divisors (1).

68319077 is an equidigital number, since it uses as much as digits as its factorization.

68319077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 68319077 is about 8265.5354938443. The cubic root of 68319077 is about 408.8029271182.

The spelling of 68319077 in words is "sixty-eight million, three hundred nineteen thousand, seventy-seven".