68017679 has 2 divisors, whose sum is σ = 68017680. Its totient is φ = 68017678.

The previous prime is 68017637. The next prime is 68017681. The reversal of 68017679 is 97671086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68017679 - 2⁸ = 68017423 is a prime.

Together with 68017681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68017879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34008839 + 34008840.

It is an arithmetic number, because the mean of its divisors is an integer number (34008840).

Almost surely, 2^68017679 is an apocalyptic number.

68017679 is a deficient number, since it is larger than the sum of its proper divisors (1).

68017679 is an equidigital number, since it uses as much as digits as its factorization.

68017679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 68017679 is about 8247.2831284005. The cubic root of 68017679 is about 408.2008794702.

The spelling of 68017679 in words is "sixty-eight million, seventeen thousand, six hundred seventy-nine".