68819207 has 2 divisors, whose sum is σ = 68819208. Its totient is φ = 68819206.

The previous prime is 68819167. The next prime is 68819209. The reversal of 68819207 is 70291886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68819207 - 2⁶ = 68819143 is a prime.

Together with 68819209, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68819209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34409603 + 34409604.

It is an arithmetic number, because the mean of its divisors is an integer number (34409604).

Almost surely, 2^68819207 is an apocalyptic number.

68819207 is a deficient number, since it is larger than the sum of its proper divisors (1).

68819207 is an equidigital number, since it uses as much as digits as its factorization.

68819207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 68819207 is about 8295.7342652715. The cubic root of 68819207 is about 409.7980504549.

The spelling of 68819207 in words is "sixty-eight million, eight hundred nineteen thousand, two hundred seven".