8009007689 has 2 divisors, whose sum is σ = 8009007690. Its totient is φ = 8009007688.

The previous prime is 8009007667. The next prime is 8009007703. The reversal of 8009007689 is 9867009008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6842102089 + 1166905600 = 82717^2 + 34160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8009007689 is a prime.

It is a super-2 number, since 2×8009007689² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8009007659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4004503844 + 4004503845.

It is an arithmetic number, because the mean of its divisors is an integer number (4004503845).

Almost surely, 2^8009007689 is an apocalyptic number.

It is an amenable number.

8009007689 is a deficient number, since it is larger than the sum of its proper divisors (1).

8009007689 is an equidigital number, since it uses as much as digits as its factorization.

8009007689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 47.

The square root of 8009007689 is about 89493.0594459704. The cubic root of 8009007689 is about 2000.7503591953.

The spelling of 8009007689 in words is "eight billion, nine million, seven thousand, six hundred eighty-nine".