8441689 has 4 divisors (see below), whose sum is σ = 8463780. Its totient is φ = 8419600.

The previous prime is 8441677. The next prime is 8441701. The reversal of 8441689 is 9861448.

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

It is an interprime number because it is at equal distance from previous prime (8441677) and next prime (8441701).

It can be written as a sum of positive squares in 2 ways, for example, as 4862025 + 3579664 = 2205^2 + 1892^2 .

It is a cyclic number.

It is not a de Polignac number, because 8441689 - 2¹³ = 8433497 is a prime.

It is a super-2 number, since 2×8441689² = 142524226345442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8441669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10462 + ... + 11239.

It is an arithmetic number, because the mean of its divisors is an integer number (2115945).

Almost surely, 2^8441689 is an apocalyptic number.

It is an amenable number.

8441689 is a deficient number, since it is larger than the sum of its proper divisors (22091).

8441689 is a wasteful number, since it uses less digits than its factorization.

8441689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22090.

The product of its digits is 55296, while the sum is 40.

The square root of 8441689 is about 2905.4584836132. The cubic root of 8441689 is about 203.6150066199.

It can be divided in two parts, 844 and 1689, that multiplied together give a triangular number (1425516 = T₁₆₈₈).

The spelling of 8441689 in words is "eight million, four hundred forty-one thousand, six hundred eighty-nine".