68794787 has 2 divisors, whose sum is σ = 68794788. Its totient is φ = 68794786.

The previous prime is 68794783. The next prime is 68794813. The reversal of 68794787 is 78749786.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68794787 - 2² = 68794783 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68794783) 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, 34397393 + 34397394.

It is an arithmetic number, because the mean of its divisors is an integer number (34397394).

Almost surely, 2^68794787 is an apocalyptic number.

68794787 is a deficient number, since it is larger than the sum of its proper divisors (1).

68794787 is an equidigital number, since it uses as much as digits as its factorization.

68794787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4741632, while the sum is 56.

The square root of 68794787 is about 8294.2622938993. The cubic root of 68794787 is about 409.7495734248.

The spelling of 68794787 in words is "sixty-eight million, seven hundred ninety-four thousand, seven hundred eighty-seven".