68808679 has 2 divisors, whose sum is σ = 68808680. Its totient is φ = 68808678.

The previous prime is 68808629. The next prime is 68808683. The reversal of 68808679 is 97680886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68808679 - 2¹¹ = 68806631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68808629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34404339 + 34404340.

It is an arithmetic number, because the mean of its divisors is an integer number (34404340).

Almost surely, 2^68808679 is an apocalyptic number.

68808679 is a deficient number, since it is larger than the sum of its proper divisors (1).

68808679 is an equidigital number, since it uses as much as digits as its factorization.

68808679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 68808679 is about 8295.0996980145. The cubic root of 68808679 is about 409.7771523457. Note that the first 3 decimals are identical.

The spelling of 68808679 in words is "sixty-eight million, eight hundred eight thousand, six hundred seventy-nine".