676780229 has 2 divisors, whose sum is σ = 676780230. Its totient is φ = 676780228.

The previous prime is 676780207. The next prime is 676780231. The reversal of 676780229 is 922087676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 676780225 + 4 = 26015^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 676780229 - 2²⁰ = 675731653 is a prime.

It is a Sophie Germain prime.

Together with 676780231, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676780259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338390114 + 338390115.

It is an arithmetic number, because the mean of its divisors is an integer number (338390115).

Almost surely, 2^676780229 is an apocalyptic number.

It is an amenable number.

676780229 is a deficient number, since it is larger than the sum of its proper divisors (1).

676780229 is an equidigital number, since it uses as much as digits as its factorization.

676780229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 47.

The square root of 676780229 is about 26015.0000768787. Note that the first 4 decimals coincide. The cubic root of 676780229 is about 877.9758180045.

The spelling of 676780229 in words is "six hundred seventy-six million, seven hundred eighty thousand, two hundred twenty-nine".