676718869 has 2 divisors, whose sum is σ = 676718870. Its totient is φ = 676718868.

The previous prime is 676718843. The next prime is 676718873. The reversal of 676718869 is 968817676.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 675480100 + 1238769 = 25990^2 + 1113^2 .

It is a cyclic number.

It is not a de Polignac number, because 676718869 - 2¹³ = 676710677 is a prime.

It is a super-2 number, since 2×676718869² = 915896855321278322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676718879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338359434 + 338359435.

It is an arithmetic number, because the mean of its divisors is an integer number (338359435).

Almost surely, 2^676718869 is an apocalyptic number.

It is an amenable number.

676718869 is a deficient number, since it is larger than the sum of its proper divisors (1).

676718869 is an equidigital number, since it uses as much as digits as its factorization.

676718869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 58.

The square root of 676718869 is about 26013.8207305271. The cubic root of 676718869 is about 877.9492834309.

The spelling of 676718869 in words is "six hundred seventy-six million, seven hundred eighteen thousand, eight hundred sixty-nine".