677819713 has 2 divisors, whose sum is σ = 677819714. Its totient is φ = 677819712.

The previous prime is 677819669. The next prime is 677819719. The reversal of 677819713 is 317918776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 641963569 + 35856144 = 25337^2 + 5988^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677819713 is a prime.

It is not a weakly prime, because it can be changed into another prime (677819719) 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, 338909856 + 338909857.

It is an arithmetic number, because the mean of its divisors is an integer number (338909857).

Almost surely, 2^677819713 is an apocalyptic number.

It is an amenable number.

677819713 is a deficient number, since it is larger than the sum of its proper divisors (1).

677819713 is an equidigital number, since it uses as much as digits as its factorization.

677819713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 49.

The square root of 677819713 is about 26034.9709621501. The cubic root of 677819713 is about 878.4250898776.

The spelling of 677819713 in words is "six hundred seventy-seven million, eight hundred nineteen thousand, seven hundred thirteen".