8389873 has 4 divisors (see below), whose sum is σ = 8426740. Its totient is φ = 8353008.

The previous prime is 8389837. The next prime is 8389877. The reversal of 8389873 is 3789838.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5726449 + 2663424 = 2393^2 + 1632^2 .

It is a cyclic number.

It is not a de Polignac number, because 8389873 - 2⁹ = 8389361 is a prime.

It is a super-2 number, since 2×8389873² = 140779937912258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8389877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18090 + ... + 18547.

It is an arithmetic number, because the mean of its divisors is an integer number (2106685).

Almost surely, 2^8389873 is an apocalyptic number.

It is an amenable number.

8389873 is a deficient number, since it is larger than the sum of its proper divisors (36867).

8389873 is a wasteful number, since it uses less digits than its factorization.

8389873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36866.

The product of its digits is 290304, while the sum is 46.

The square root of 8389873 is about 2896.5277488745. The cubic root of 8389873 is about 203.1975476717.

The spelling of 8389873 in words is "eight million, three hundred eighty-nine thousand, eight hundred seventy-three".