8000689 has 2 divisors, whose sum is σ = 8000690. Its totient is φ = 8000688.

The previous prime is 8000683. The next prime is 8000719. The reversal of 8000689 is 9860008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6801664 + 1199025 = 2608^2 + 1095^2 .

It is a cyclic number.

It is not a de Polignac number, because 8000689 - 2⁷ = 8000561 is a prime.

It is a super-2 number, since 2×8000689² = 128022048949442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8000689.

It is not a weakly prime, because it can be changed into another prime (8000683) 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 as a sum of consecutive naturals, namely, 4000344 + 4000345.

It is an arithmetic number, because the mean of its divisors is an integer number (4000345).

Almost surely, 2^8000689 is an apocalyptic number.

It is an amenable number.

8000689 is a deficient number, since it is larger than the sum of its proper divisors (1).

8000689 is an equidigital number, since it uses as much as digits as its factorization.

8000689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 8000689 is about 2828.5489212669. The cubic root of 8000689 is about 200.0057415018.

The spelling of 8000689 in words is "eight million, six hundred eighty-nine", and thus it is an aban number.