8006989 has 2 divisors, whose sum is σ = 8006990. Its totient is φ = 8006988.

The previous prime is 8006941. The next prime is 8007001. The reversal of 8006989 is 9896008.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7896100 + 110889 = 2810^2 + 333^2 .

It is a cyclic number.

It is not a de Polignac number, because 8006989 - 2⁷ = 8006861 is a prime.

It is a super-2 number, since 2×8006989² = 128223745692242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8006909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4003494 + 4003495.

It is an arithmetic number, because the mean of its divisors is an integer number (4003495).

Almost surely, 2^8006989 is an apocalyptic number.

It is an amenable number.

8006989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8006989 is an equidigital number, since it uses as much as digits as its factorization.

8006989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 8006989 is about 2829.6623473482. The cubic root of 8006989 is about 200.0582247144.

The spelling of 8006989 in words is "eight million, six thousand, nine hundred eighty-nine".