68068879 has 2 divisors, whose sum is σ = 68068880. Its totient is φ = 68068878.

The previous prime is 68068841. The next prime is 68068883. The reversal of 68068879 is 97886086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68068879 - 2⁷ = 68068751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68068379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34034439 + 34034440.

It is an arithmetic number, because the mean of its divisors is an integer number (34034440).

Almost surely, 2^68068879 is an apocalyptic number.

68068879 is a deficient number, since it is larger than the sum of its proper divisors (1).

68068879 is an equidigital number, since it uses as much as digits as its factorization.

68068879 is an evil number, because the sum of its binary digits is even.

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

The square root of 68068879 is about 8250.3865970026. The cubic root of 68068879 is about 408.3032775693.

The spelling of 68068879 in words is "sixty-eight million, sixty-eight thousand, eight hundred seventy-nine".