68244871 has 2 divisors, whose sum is σ = 68244872. Its totient is φ = 68244870.

The previous prime is 68244863. The next prime is 68244889. The reversal of 68244871 is 17844286.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68244871 - 2³ = 68244863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68244821) 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, 34122435 + 34122436.

It is an arithmetic number, because the mean of its divisors is an integer number (34122436).

Almost surely, 2^68244871 is an apocalyptic number.

68244871 is a deficient number, since it is larger than the sum of its proper divisors (1).

68244871 is an equidigital number, since it uses as much as digits as its factorization.

68244871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86016, while the sum is 40.

The square root of 68244871 is about 8261.0453938954. The cubic root of 68244871 is about 408.6548639360.

The spelling of 68244871 in words is "sixty-eight million, two hundred forty-four thousand, eight hundred seventy-one".