680936033 has 2 divisors, whose sum is σ = 680936034. Its totient is φ = 680936032.

The previous prime is 680936021. The next prime is 680936057. The reversal of 680936033 is 330639086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397922704 + 283013329 = 19948^2 + 16823^2 .

It is a cyclic number.

It is not a de Polignac number, because 680936033 - 2⁴ = 680936017 is a prime.

It is not a weakly prime, because it can be changed into another prime (680936093) 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, 340468016 + 340468017.

It is an arithmetic number, because the mean of its divisors is an integer number (340468017).

Almost surely, 2^680936033 is an apocalyptic number.

It is an amenable number.

680936033 is a deficient number, since it is larger than the sum of its proper divisors (1).

680936033 is an equidigital number, since it uses as much as digits as its factorization.

680936033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 680936033 is about 26094.7510622347. The cubic root of 680936033 is about 879.7692374435.

The spelling of 680936033 in words is "six hundred eighty million, nine hundred thirty-six thousand, thirty-three".