8679681 has 12 divisors (see below), whose sum is σ = 12564708. Its totient is φ = 5773824.

The previous prime is 8679677. The next prime is 8679709. The reversal of 8679681 is 1869768.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5130225 + 3549456 = 2265^2 + 1884^2 .

It is not a de Polignac number, because 8679681 - 2² = 8679677 is a prime.

It is a super-2 number, since 2×8679681² = 150673724523522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8679641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5341 + ... + 6773.

It is an arithmetic number, because the mean of its divisors is an integer number (1047059).

Almost surely, 2^8679681 is an apocalyptic number.

It is an amenable number.

8679681 is a deficient number, since it is larger than the sum of its proper divisors (3885027).

8679681 is a wasteful number, since it uses less digits than its factorization.

8679681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112 (or 2109 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 8679681 is about 2946.1298342062. The cubic root of 8679681 is about 205.5107707428.

The spelling of 8679681 in words is "eight million, six hundred seventy-nine thousand, six hundred eighty-one".