67506073 has 2 divisors, whose sum is σ = 67506074. Its totient is φ = 67506072.

The previous prime is 67506071. The next prime is 67506079. The reversal of 67506073 is 37060576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63808144 + 3697929 = 7988^2 + 1923^2 .

It is a cyclic number.

It is not a de Polignac number, because 67506073 - 2¹ = 67506071 is a prime.

Together with 67506071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (67506071) 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, 33753036 + 33753037.

It is an arithmetic number, because the mean of its divisors is an integer number (33753037).

Almost surely, 2^67506073 is an apocalyptic number.

It is an amenable number.

67506073 is a deficient number, since it is larger than the sum of its proper divisors (1).

67506073 is an equidigital number, since it uses as much as digits as its factorization.

67506073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 34.

The square root of 67506073 is about 8216.2079452750. The cubic root of 67506073 is about 407.1748529810.

The spelling of 67506073 in words is "sixty-seven million, five hundred six thousand, seventy-three".