8443340913 has 16 divisors (see below), whose sum is σ = 12898141056. Its totient is φ = 4812729600.

The previous prime is 8443340891. The next prime is 8443340933. The reversal of 8443340913 is 3190433448.

8443340913 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8443340913 - 2⁵ = 8443340881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8443340933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492906 + ... + 509747.

It is an arithmetic number, because the mean of its divisors is an integer number (806133816).

Almost surely, 2^8443340913 is an apocalyptic number.

It is an amenable number.

8443340913 is a deficient number, since it is larger than the sum of its proper divisors (4454800143).

8443340913 is a wasteful number, since it uses less digits than its factorization.

8443340913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003064.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 8443340913 is about 91887.6537571833. The cubic root of 8443340913 is about 2036.2828722995.

The spelling of 8443340913 in words is "eight billion, four hundred forty-three million, three hundred forty thousand, nine hundred thirteen".