68911207 has 2 divisors, whose sum is σ = 68911208. Its totient is φ = 68911206.

The previous prime is 68911169. The next prime is 68911211. The reversal of 68911207 is 70211986.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68911207 - 2⁷ = 68911079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68911247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34455603 + 34455604.

It is an arithmetic number, because the mean of its divisors is an integer number (34455604).

Almost surely, 2^68911207 is an apocalyptic number.

68911207 is a deficient number, since it is larger than the sum of its proper divisors (1).

68911207 is an equidigital number, since it uses as much as digits as its factorization.

68911207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 68911207 is about 8301.2774318173. The cubic root of 68911207 is about 409.9805800835.

The spelling of 68911207 in words is "sixty-eight million, nine hundred eleven thousand, two hundred seven".