8443641 has 8 divisors (see below), whose sum is σ = 11301120. Its totient is φ = 5607632.

The previous prime is 8443639. The next prime is 8443649. The reversal of 8443641 is 1463448.

8443641 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8443641 - 2¹ = 8443639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8443599 and 8443608.

It is not an unprimeable number, because it can be changed into a prime (8443649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4425 + ... + 6038.

It is an arithmetic number, because the mean of its divisors is an integer number (1412640).

Almost surely, 2^8443641 is an apocalyptic number.

It is an amenable number.

8443641 is a deficient number, since it is larger than the sum of its proper divisors (2857479).

8443641 is a wasteful number, since it uses less digits than its factorization.

8443641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10735.

The product of its digits is 9216, while the sum is 30.

The square root of 8443641 is about 2905.7943836411. The cubic root of 8443641 is about 203.6306996035.

The spelling of 8443641 in words is "eight million, four hundred forty-three thousand, six hundred forty-one".