676832257 has 2 divisors, whose sum is σ = 676832258. Its totient is φ = 676832256.

The previous prime is 676832239. The next prime is 676832267. The reversal of 676832257 is 752238676.

It is a Cunningham number, because it is equal to 26016²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 676832256 + 1 = 26016^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 676832257 - 2¹⁹ = 676307969 is a prime.

It is not a weakly prime, because it can be changed into another prime (676832267) 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, 338416128 + 338416129.

It is an arithmetic number, because the mean of its divisors is an integer number (338416129).

Almost surely, 2^676832257 is an apocalyptic number.

It is an amenable number.

676832257 is a deficient number, since it is larger than the sum of its proper divisors (1).

676832257 is an equidigital number, since it uses as much as digits as its factorization.

676832257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 46.

The square root of 676832257 is about 26016.0000192189. Note that the first 4 decimals coincide. The cubic root of 676832257 is about 877.9983157831.

The spelling of 676832257 in words is "six hundred seventy-six million, eight hundred thirty-two thousand, two hundred fifty-seven".