66797833 has 2 divisors, whose sum is σ = 66797834. Its totient is φ = 66797832.

The previous prime is 66797821. The next prime is 66797891. The reversal of 66797833 is 33879766.

66797833 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65076489 + 1721344 = 8067^2 + 1312^2 .

It is a cyclic number.

It is not a de Polignac number, because 66797833 - 2²⁵ = 33243401 is a prime.

It is not a weakly prime, because it can be changed into another prime (66797333) 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, 33398916 + 33398917.

It is an arithmetic number, because the mean of its divisors is an integer number (33398917).

Almost surely, 2^66797833 is an apocalyptic number.

It is an amenable number.

66797833 is a deficient number, since it is larger than the sum of its proper divisors (1).

66797833 is an equidigital number, since it uses as much as digits as its factorization.

66797833 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072, while the sum is 49.

The square root of 66797833 is about 8172.9941270014. The cubic root of 66797833 is about 405.7458855369.

The spelling of 66797833 in words is "sixty-six million, seven hundred ninety-seven thousand, eight hundred thirty-three".