8018289 has 12 divisors (see below), whose sum is σ = 11697972. Its totient is φ = 5292000.

The previous prime is 8018281. The next prime is 8018291. The reversal of 8018289 is 9828108.

It can be written as a sum of positive squares in 2 ways, for example, as 6656400 + 1361889 = 2580^2 + 1167^2 .

It is not a de Polignac number, because 8018289 - 2³ = 8018281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8018281) 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 in 11 ways as a sum of consecutive naturals, for example, 3502 + ... + 5319.

It is an arithmetic number, because the mean of its divisors is an integer number (974831).

Almost surely, 2^8018289 is an apocalyptic number.

It is an amenable number.

8018289 is a deficient number, since it is larger than the sum of its proper divisors (3679683).

8018289 is a wasteful number, since it uses less digits than its factorization.

8018289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8928 (or 8925 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 8018289 is about 2831.6583480357. The cubic root of 8018289 is about 200.1522923391.

The spelling of 8018289 in words is "eight million, eighteen thousand, two hundred eighty-nine".