67828073 has 2 divisors, whose sum is σ = 67828074. Its totient is φ = 67828072.

The previous prime is 67828051. The next prime is 67828087. The reversal of 67828073 is 37082876.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58415449 + 9412624 = 7643^2 + 3068^2 .

It is a cyclic number.

It is not a de Polignac number, because 67828073 - 2⁶ = 67828009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67828073.

It is not a weakly prime, because it can be changed into another prime (67828973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33914036 + 33914037.

It is an arithmetic number, because the mean of its divisors is an integer number (33914037).

Almost surely, 2^67828073 is an apocalyptic number.

It is an amenable number.

67828073 is a deficient number, since it is larger than the sum of its proper divisors (1).

67828073 is an equidigital number, since it uses as much as digits as its factorization.

67828073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 67828073 is about 8235.7800480586. The cubic root of 67828073 is about 407.8212263846.

The spelling of 67828073 in words is "sixty-seven million, eight hundred twenty-eight thousand, seventy-three".