67818041 has 2 divisors, whose sum is σ = 67818042. Its totient is φ = 67818040.

The previous prime is 67818017. The next prime is 67818043. The reversal of 67818041 is 14081876.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35952016 + 31866025 = 5996^2 + 5645^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67818041 is a prime.

Together with 67818043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 67817992 and 67818010.

It is not a weakly prime, because it can be changed into another prime (67818043) 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, 33909020 + 33909021.

It is an arithmetic number, because the mean of its divisors is an integer number (33909021).

Almost surely, 2^67818041 is an apocalyptic number.

It is an amenable number.

67818041 is a deficient number, since it is larger than the sum of its proper divisors (1).

67818041 is an equidigital number, since it uses as much as digits as its factorization.

67818041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 35.

The square root of 67818041 is about 8235.1709757600. The cubic root of 67818041 is about 407.8011193499.

The spelling of 67818041 in words is "sixty-seven million, eight hundred eighteen thousand, forty-one".