676779443 has 2 divisors, whose sum is σ = 676779444. Its totient is φ = 676779442.

The previous prime is 676779413. The next prime is 676779457. The reversal of 676779443 is 344977676.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-676779443 is a prime.

It is not a weakly prime, because it can be changed into another prime (676779403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338389721 + 338389722.

It is an arithmetic number, because the mean of its divisors is an integer number (338389722).

Almost surely, 2^676779443 is an apocalyptic number.

676779443 is a deficient number, since it is larger than the sum of its proper divisors (1).

676779443 is an equidigital number, since it uses as much as digits as its factorization.

676779443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5334336, while the sum is 53.

The square root of 676779443 is about 26014.9849702052. The cubic root of 676779443 is about 877.9754781161.

The spelling of 676779443 in words is "six hundred seventy-six million, seven hundred seventy-nine thousand, four hundred forty-three".