68743853 has 2 divisors, whose sum is σ = 68743854. Its totient is φ = 68743852.

The previous prime is 68743847. The next prime is 68743861. The reversal of 68743853 is 35834786.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65496649 + 3247204 = 8093^2 + 1802^2 .

It is a cyclic number.

It is not a de Polignac number, because 68743853 - 2¹⁰ = 68742829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68743153) 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, 34371926 + 34371927.

It is an arithmetic number, because the mean of its divisors is an integer number (34371927).

Almost surely, 2^68743853 is an apocalyptic number.

It is an amenable number.

68743853 is a deficient number, since it is larger than the sum of its proper divisors (1).

68743853 is an equidigital number, since it uses as much as digits as its factorization.

68743853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 44.

The square root of 68743853 is about 8291.1912895554. The cubic root of 68743853 is about 409.6484255598.

It can be divided in two parts, 68743 and 853, that added together give a palindrome (69596).

The spelling of 68743853 in words is "sixty-eight million, seven hundred forty-three thousand, eight hundred fifty-three".