676736657 has 2 divisors, whose sum is σ = 676736658. Its totient is φ = 676736656.

The previous prime is 676736633. The next prime is 676736689. The reversal of 676736657 is 756637676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511845376 + 164891281 = 22624^2 + 12841^2 .

It is a cyclic number.

It is not a de Polignac number, because 676736657 - 2¹² = 676732561 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 676736599 and 676736608.

It is not a weakly prime, because it can be changed into another prime (676756657) 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, 338368328 + 338368329.

It is an arithmetic number, because the mean of its divisors is an integer number (338368329).

Almost surely, 2^676736657 is an apocalyptic number.

It is an amenable number.

676736657 is a deficient number, since it is larger than the sum of its proper divisors (1).

676736657 is an equidigital number, since it uses as much as digits as its factorization.

676736657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6667920, while the sum is 53.

The square root of 676736657 is about 26014.1626234634. The cubic root of 676736657 is about 877.9569758547.

The spelling of 676736657 in words is "six hundred seventy-six million, seven hundred thirty-six thousand, six hundred fifty-seven".