68009077 has 2 divisors, whose sum is σ = 68009078. Its totient is φ = 68009076.

The previous prime is 68009033. The next prime is 68009099. The reversal of 68009077 is 77090086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65918161 + 2090916 = 8119^2 + 1446^2 .

It is a cyclic number.

It is not a de Polignac number, because 68009077 - 2¹¹ = 68007029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68009377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34004538 + 34004539.

It is an arithmetic number, because the mean of its divisors is an integer number (34004539).

Almost surely, 2^68009077 is an apocalyptic number.

It is an amenable number.

68009077 is a deficient number, since it is larger than the sum of its proper divisors (1).

68009077 is an equidigital number, since it uses as much as digits as its factorization.

68009077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 68009077 is about 8246.7616068370. The cubic root of 68009077 is about 408.1836707481.

The spelling of 68009077 in words is "sixty-eight million, nine thousand, seventy-seven".