68859779 has 2 divisors, whose sum is σ = 68859780. Its totient is φ = 68859778.

The previous prime is 68859761. The next prime is 68859803. The reversal of 68859779 is 97795886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68859779 - 2⁸ = 68859523 is a prime.

It is not a weakly prime, because it can be changed into another prime (68859379) 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, 34429889 + 34429890.

It is an arithmetic number, because the mean of its divisors is an integer number (34429890).

Almost surely, 2^68859779 is an apocalyptic number.

68859779 is a deficient number, since it is larger than the sum of its proper divisors (1).

68859779 is an equidigital number, since it uses as much as digits as its factorization.

68859779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 59.

The square root of 68859779 is about 8298.1792581264. The cubic root of 68859779 is about 409.8785660598.

The spelling of 68859779 in words is "sixty-eight million, eight hundred fifty-nine thousand, seven hundred seventy-nine".