8089639 has 2 divisors, whose sum is σ = 8089640. Its totient is φ = 8089638.

The previous prime is 8089619. The next prime is 8089673. The reversal of 8089639 is 9369808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8089639 - 2⁷ = 8089511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8089595 and 8089604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8089619) 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, 4044819 + 4044820.

It is an arithmetic number, because the mean of its divisors is an integer number (4044820).

Almost surely, 2^8089639 is an apocalyptic number.

8089639 is a deficient number, since it is larger than the sum of its proper divisors (1).

8089639 is an equidigital number, since it uses as much as digits as its factorization.

8089639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 8089639 is about 2844.2290695371. The cubic root of 8089639 is about 200.7442189227.

The spelling of 8089639 in words is "eight million, eighty-nine thousand, six hundred thirty-nine".