8964643 has 4 divisors (see below), whose sum is σ = 9057160. Its totient is φ = 8872128.

The previous prime is 8964623. The next prime is 8964647. The reversal of 8964643 is 3464698.

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

It is a cyclic number.

It is not a de Polignac number, because 8964643 - 2¹⁷ = 8833571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8964596 and 8964605.

It is not an unprimeable number, because it can be changed into a prime (8964647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46113 + ... + 46306.

It is an arithmetic number, because the mean of its divisors is an integer number (2264290).

Almost surely, 2^8964643 is an apocalyptic number.

8964643 is a deficient number, since it is larger than the sum of its proper divisors (92517).

8964643 is an equidigital number, since it uses as much as digits as its factorization.

8964643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92516.

The product of its digits is 124416, while the sum is 40.

The square root of 8964643 is about 2994.1013676895. The cubic root of 8964643 is about 207.7356339952.

Subtracting from 8964643 its reverse (3464698), we obtain a palindrome (5499945).

The spelling of 8964643 in words is "eight million, nine hundred sixty-four thousand, six hundred forty-three".