8189449 has 12 divisors (see below), whose sum is σ = 8699796. Its totient is φ = 7707392.

The previous prime is 8189443. The next prime is 8189453. The reversal of 8189449 is 9449818.

8189449 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1904400 + 6285049 = 1380^2 + 2507^2 .

It is not a de Polignac number, because 8189449 - 2⁹ = 8188937 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8189443) 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, 59709 + ... + 59845.

It is an arithmetic number, because the mean of its divisors is an integer number (724983).

Almost surely, 2^8189449 is an apocalyptic number.

It is an amenable number.

8189449 is a deficient number, since it is larger than the sum of its proper divisors (510347).

8189449 is a wasteful number, since it uses less digits than its factorization.

8189449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 273 counting only the distinct ones).

The product of its digits is 82944, while the sum is 43.

The square root of 8189449 is about 2861.7213351408. The cubic root of 8189449 is about 201.5664409501.

The spelling of 8189449 in words is "eight million, one hundred eighty-nine thousand, four hundred forty-nine".