66000793 has 2 divisors, whose sum is σ = 66000794. Its totient is φ = 66000792.

The previous prime is 66000791. The next prime is 66000797. The reversal of 66000793 is 39700066.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65804544 + 196249 = 8112^2 + 443^2 .

It is a cyclic number.

It is not a de Polignac number, because 66000793 - 2¹ = 66000791 is a prime.

It is a super-2 number, since 2×66000793² = 8712209353257698, which contains 22 as substring.

Together with 66000791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (66000791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33000396 + 33000397.

It is an arithmetic number, because the mean of its divisors is an integer number (33000397).

Almost surely, 2^66000793 is an apocalyptic number.

It is an amenable number.

66000793 is a deficient number, since it is larger than the sum of its proper divisors (1).

66000793 is an equidigital number, since it uses as much as digits as its factorization.

66000793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 66000793 is about 8124.0872102655. The cubic root of 66000793 is about 404.1256205928.

The spelling of 66000793 in words is "sixty-six million, seven hundred ninety-three", and thus it is an aban number.