67068629 has 2 divisors, whose sum is σ = 67068630. Its totient is φ = 67068628.

The previous prime is 67068623. The next prime is 67068637. The reversal of 67068629 is 92686076.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65448100 + 1620529 = 8090^2 + 1273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67068629 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67068629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67068623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33534314 + 33534315.

It is an arithmetic number, because the mean of its divisors is an integer number (33534315).

Almost surely, 2^67068629 is an apocalyptic number.

It is an amenable number.

67068629 is a deficient number, since it is larger than the sum of its proper divisors (1).

67068629 is an equidigital number, since it uses as much as digits as its factorization.

67068629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 67068629 is about 8189.5438822928. The cubic root of 67068629 is about 406.2934393313.

The spelling of 67068629 in words is "sixty-seven million, sixty-eight thousand, six hundred twenty-nine".