4159989 has 6 divisors (see below), whose sum is σ = 6008886. Its totient is φ = 2773320.

The previous prime is 4159979. The next prime is 4159997. The reversal of 4159989 is 9899514.

It can be written as a sum of positive squares in only one way, i.e., 2377764 + 1782225 = 1542^2 + 1335^2 .

It is not a de Polignac number, because 4159989 - 2⁴ = 4159973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4159979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 231102 + ... + 231119.

It is an arithmetic number, because the mean of its divisors is an integer number (1001481).

Almost surely, 2^4159989 is an apocalyptic number.

It is an amenable number.

4159989 is a deficient number, since it is larger than the sum of its proper divisors (1848897).

4159989 is a wasteful number, since it uses less digits than its factorization.

4159989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462227 (or 462224 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 4159989 is about 2039.6051088385. The cubic root of 4159989 is about 160.8288885871.

It can be divided in two parts, 415 and 9989, that added together give a square (10404 = 102²).

The spelling of 4159989 in words is "four million, one hundred fifty-nine thousand, nine hundred eighty-nine".