68957107 has 2 divisors, whose sum is σ = 68957108. Its totient is φ = 68957106.

The previous prime is 68957071. The next prime is 68957123. The reversal of 68957107 is 70175986.

Together with previous prime (68957071) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68957107 is a prime.

It is not a weakly prime, because it can be changed into another prime (68957177) 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, 34478553 + 34478554.

It is an arithmetic number, because the mean of its divisors is an integer number (34478554).

Almost surely, 2^68957107 is an apocalyptic number.

68957107 is a deficient number, since it is larger than the sum of its proper divisors (1).

68957107 is an equidigital number, since it uses as much as digits as its factorization.

68957107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 68957107 is about 8304.0416063505. The cubic root of 68957107 is about 410.0715857554.

The spelling of 68957107 in words is "sixty-eight million, nine hundred fifty-seven thousand, one hundred seven".