68930785 has 16 divisors (see below), whose sum is σ = 103128192. Its totient is φ = 42969600.

The previous prime is 68930779. The next prime is 68930809. The reversal of 68930785 is 58703986.

It is not a de Polignac number, because 68930785 - 2⁷ = 68930657 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, 89136 + ... + 89905.

It is an arithmetic number, because the mean of its divisors is an integer number (6445512).

Almost surely, 2^68930785 is an apocalyptic number.

It is an amenable number.

68930785 is a deficient number, since it is larger than the sum of its proper divisors (34197407).

68930785 is a wasteful number, since it uses less digits than its factorization.

68930785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179064.

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 68930785 is about 8302.4565641742. The cubic root of 68930785 is about 410.0194022149.

Subtracting from 68930785 its product of nonzero digits (362880), we obtain a triangular number (68567905 = T₁₁₇₁₀).

The spelling of 68930785 in words is "sixty-eight million, nine hundred thirty thousand, seven hundred eighty-five".