68766785 has 16 divisors (see below), whose sum is σ = 87947856. Its totient is φ = 51437568.

The previous prime is 68766769. The next prime is 68766823. The reversal of 68766785 is 58766786.

It can be written as a sum of positive squares in 8 ways, for example, as 92416 + 68674369 = 304^2 + 8287^2 .

It is a cyclic number.

It is not a de Polignac number, because 68766785 - 2⁴ = 68766769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10769 + ... + 15921.

It is an arithmetic number, because the mean of its divisors is an integer number (5496741).

Almost surely, 2^68766785 is an apocalyptic number.

It is an amenable number.

68766785 is a deficient number, since it is larger than the sum of its proper divisors (19181071).

68766785 is a wasteful number, since it uses less digits than its factorization.

68766785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332.

The product of its digits is 3386880, while the sum is 53.

The square root of 68766785 is about 8292.5740877004. The cubic root of 68766785 is about 409.6939715148.

Subtracting from 68766785 its reverse (58766786), we obtain a palindrome (9999999).

The spelling of 68766785 in words is "sixty-eight million, seven hundred sixty-six thousand, seven hundred eighty-five".