8389169 has 4 divisors (see below), whose sum is σ = 8435700. Its totient is φ = 8342640.

The previous prime is 8389163. The next prime is 8389187. The reversal of 8389169 is 9619838.

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 616225 + 7772944 = 785^2 + 2788^2 .

It is a cyclic number.

It is not a de Polignac number, because 8389169 - 2⁴ = 8389153 is a prime.

It is a super-2 number, since 2×8389169² = 140756313021122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8389163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22994 + ... + 23355.

It is an arithmetic number, because the mean of its divisors is an integer number (2108925).

Almost surely, 2^8389169 is an apocalyptic number.

It is an amenable number.

8389169 is a deficient number, since it is larger than the sum of its proper divisors (46531).

8389169 is a wasteful number, since it uses less digits than its factorization.

8389169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46530.

The product of its digits is 93312, while the sum is 44.

The square root of 8389169 is about 2896.4062215097. The cubic root of 8389169 is about 203.1918640309.

It can be divided in two parts, 8389 and 169, that added together give a palindrome (8558).

The spelling of 8389169 in words is "eight million, three hundred eighty-nine thousand, one hundred sixty-nine".