68246887 has 2 divisors, whose sum is σ = 68246888. Its totient is φ = 68246886.

The previous prime is 68246821. The next prime is 68246929. The reversal of 68246887 is 78864286.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68246887 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68246887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68246807) 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, 34123443 + 34123444.

It is an arithmetic number, because the mean of its divisors is an integer number (34123444).

Almost surely, 2^68246887 is an apocalyptic number.

68246887 is a deficient number, since it is larger than the sum of its proper divisors (1).

68246887 is an equidigital number, since it uses as much as digits as its factorization.

68246887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1032192, while the sum is 49.

The square root of 68246887 is about 8261.1674114498. The cubic root of 68246887 is about 408.6588878774.

The spelling of 68246887 in words is "sixty-eight million, two hundred forty-six thousand, eight hundred eighty-seven".