68103785 has 16 divisors (see below), whose sum is σ = 86750352. Its totient is φ = 51148800.

The previous prime is 68103773. The next prime is 68103821. The reversal of 68103785 is 58730186.

It can be written as a sum of positive squares in 8 ways, for example, as 8281 + 68095504 = 91^2 + 8252^2 .

It is not a de Polignac number, because 68103785 - 2¹⁰ = 68102761 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 45245 + ... + 46725.

It is an arithmetic number, because the mean of its divisors is an integer number (5421897).

Almost surely, 2^68103785 is an apocalyptic number.

It is an amenable number.

68103785 is a deficient number, since it is larger than the sum of its proper divisors (18646567).

68103785 is a wasteful number, since it uses less digits than its factorization.

68103785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 68103785 is about 8252.5017418962. The cubic root of 68103785 is about 408.3730588405.

The spelling of 68103785 in words is "sixty-eight million, one hundred three thousand, seven hundred eighty-five".