68917699 has 2 divisors, whose sum is σ = 68917700. Its totient is φ = 68917698.

The previous prime is 68917697. The next prime is 68917703. The reversal of 68917699 is 99671986.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68917699 - 2¹ = 68917697 is a prime.

Together with 68917697, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68917697) 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, 34458849 + 34458850.

It is an arithmetic number, because the mean of its divisors is an integer number (34458850).

Almost surely, 2^68917699 is an apocalyptic number.

68917699 is a deficient number, since it is larger than the sum of its proper divisors (1).

68917699 is an equidigital number, since it uses as much as digits as its factorization.

68917699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 55.

The square root of 68917699 is about 8301.6684467642. The cubic root of 68917699 is about 409.9934541886.

The spelling of 68917699 in words is "sixty-eight million, nine hundred seventeen thousand, six hundred ninety-nine".