68536697 has 2 divisors, whose sum is σ = 68536698. Its totient is φ = 68536696.

The previous prime is 68536661. The next prime is 68536751. The reversal of 68536697 is 79663586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68492176 + 44521 = 8276^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 68536697 - 2²² = 64342393 is a prime.

It is not a weakly prime, because it can be changed into another prime (68536397) 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, 34268348 + 34268349.

It is an arithmetic number, because the mean of its divisors is an integer number (34268349).

Almost surely, 2^68536697 is an apocalyptic number.

It is an amenable number.

68536697 is a deficient number, since it is larger than the sum of its proper divisors (1).

68536697 is an equidigital number, since it uses as much as digits as its factorization.

68536697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 50.

The square root of 68536697 is about 8278.6893286317. The cubic root of 68536697 is about 409.2365268467.

The spelling of 68536697 in words is "sixty-eight million, five hundred thirty-six thousand, six hundred ninety-seven".