68985841 has 2 divisors, whose sum is σ = 68985842. Its totient is φ = 68985840.

The previous prime is 68985823. The next prime is 68985869. The reversal of 68985841 is 14858986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60777616 + 8208225 = 7796^2 + 2865^2 .

It is a cyclic number.

It is not a de Polignac number, because 68985841 - 2¹⁷ = 68854769 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68985811) 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, 34492920 + 34492921.

It is an arithmetic number, because the mean of its divisors is an integer number (34492921).

Almost surely, 2^68985841 is an apocalyptic number.

It is an amenable number.

68985841 is a deficient number, since it is larger than the sum of its proper divisors (1).

68985841 is an equidigital number, since it uses as much as digits as its factorization.

68985841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 552960, while the sum is 49.

The square root of 68985841 is about 8305.7715475445. The cubic root of 68985841 is about 410.1285359438.

The spelling of 68985841 in words is "sixty-eight million, nine hundred eighty-five thousand, eight hundred forty-one".