811680676 has 12 divisors (see below), whose sum is σ = 1424658508. Its totient is φ = 404635392.

The previous prime is 811680673. The next prime is 811680697. The reversal of 811680676 is 676086118.

It can be written as a sum of positive squares in 2 ways, for example, as 218271076 + 593409600 = 14774^2 + 24360^2 .

It is not an unprimeable number, because it can be changed into a prime (811680673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299721 + ... + 302416.

Almost surely, 2^811680676 is an apocalyptic number.

It is an amenable number.

811680676 is a deficient number, since it is larger than the sum of its proper divisors (612977832).

811680676 is a wasteful number, since it uses less digits than its factorization.

811680676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602478 (or 602476 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 811680676 is about 28490.0101088083. The cubic root of 811680676 is about 932.8140287441.

The spelling of 811680676 in words is "eight hundred eleven million, six hundred eighty thousand, six hundred seventy-six".