68653601 has 2 divisors, whose sum is σ = 68653602. Its totient is φ = 68653600.

The previous prime is 68653591. The next prime is 68653679. The reversal of 68653601 is 10635686.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65934400 + 2719201 = 8120^2 + 1649^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68653601 is a prime.

It is not a weakly prime, because it can be changed into another prime (68653681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34326800 + 34326801.

It is an arithmetic number, because the mean of its divisors is an integer number (34326801).

Almost surely, 2^68653601 is an apocalyptic number.

It is an amenable number.

68653601 is a deficient number, since it is larger than the sum of its proper divisors (1).

68653601 is an equidigital number, since it uses as much as digits as its factorization.

68653601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 68653601 is about 8285.7468583104. The cubic root of 68653601 is about 409.4690748272.

The spelling of 68653601 in words is "sixty-eight million, six hundred fifty-three thousand, six hundred one".