68013329 has 2 divisors, whose sum is σ = 68013330. Its totient is φ = 68013328.

The previous prime is 68013317. The next prime is 68013343. The reversal of 68013329 is 92331086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34199104 + 33814225 = 5848^2 + 5815^2 .

It is a cyclic number.

It is not a de Polignac number, because 68013329 - 2⁴ = 68013313 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68013295 and 68013304.

It is not a weakly prime, because it can be changed into another prime (68013359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34006664 + 34006665.

It is an arithmetic number, because the mean of its divisors is an integer number (34006665).

Almost surely, 2^68013329 is an apocalyptic number.

It is an amenable number.

68013329 is a deficient number, since it is larger than the sum of its proper divisors (1).

68013329 is an equidigital number, since it uses as much as digits as its factorization.

68013329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 68013329 is about 8247.0194009715. The cubic root of 68013329 is about 408.1921772636.

The spelling of 68013329 in words is "sixty-eight million, thirteen thousand, three hundred twenty-nine".