676643699 has 2 divisors, whose sum is σ = 676643700. Its totient is φ = 676643698.

The previous prime is 676643677. The next prime is 676643719. The reversal of 676643699 is 996346676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 676643699 - 2¹² = 676639603 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (676643629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338321849 + 338321850.

It is an arithmetic number, because the mean of its divisors is an integer number (338321850).

Almost surely, 2^676643699 is an apocalyptic number.

676643699 is a deficient number, since it is larger than the sum of its proper divisors (1).

676643699 is an equidigital number, since it uses as much as digits as its factorization.

676643699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 56.

The square root of 676643699 is about 26012.3758814915. The cubic root of 676643699 is about 877.9167746623.

The spelling of 676643699 in words is "six hundred seventy-six million, six hundred forty-three thousand, six hundred ninety-nine".