68552689 has 2 divisors, whose sum is σ = 68552690. Its totient is φ = 68552688.

The previous prime is 68552683. The next prime is 68552699. The reversal of 68552689 is 98625586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35605089 + 32947600 = 5967^2 + 5740^2 .

It is a cyclic number.

It is not a de Polignac number, because 68552689 - 2³ = 68552681 is a prime.

It is not a weakly prime, because it can be changed into another prime (68552681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34276344 + 34276345.

It is an arithmetic number, because the mean of its divisors is an integer number (34276345).

Almost surely, 2^68552689 is an apocalyptic number.

It is an amenable number.

68552689 is a deficient number, since it is larger than the sum of its proper divisors (1).

68552689 is an equidigital number, since it uses as much as digits as its factorization.

68552689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 49.

The square root of 68552689 is about 8279.6551256680. The cubic root of 68552689 is about 409.2683540860.

The spelling of 68552689 in words is "sixty-eight million, five hundred fifty-two thousand, six hundred eighty-nine".