8063989 has 2 divisors, whose sum is σ = 8063990. Its totient is φ = 8063988.

The previous prime is 8063987. The next prime is 8064011. The reversal of 8063989 is 9893608.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7128900 + 935089 = 2670^2 + 967^2 .

It is a cyclic number.

It is not a de Polignac number, because 8063989 - 2¹ = 8063987 is a prime.

Together with 8063987, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 8 + 0 + 6⁸ + 3¹³ + 9⁴ + 8³ + 9⁷ .

8063989 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8063981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4031994 + 4031995.

It is an arithmetic number, because the mean of its divisors is an integer number (4031995).

Almost surely, 2^8063989 is an apocalyptic number.

It is an amenable number.

8063989 is a deficient number, since it is larger than the sum of its proper divisors (1).

8063989 is an equidigital number, since it uses as much as digits as its factorization.

8063989 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 8063989 is about 2839.7163590753. The cubic root of 8063989 is about 200.5318262175.

The spelling of 8063989 in words is "eight million, sixty-three thousand, nine hundred eighty-nine".