8553943 has 4 divisors (see below), whose sum is σ = 8566560. Its totient is φ = 8541328.

The previous prime is 8553929. The next prime is 8553949. The reversal of 8553943 is 3493558.

8553943 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3493558 = 2 ⋅1746779.

It is a cyclic number.

It is not a de Polignac number, because 8553943 - 2⁵ = 8553911 is a prime.

It is a Duffinian number.

8553943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8553949) 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, 5230 + ... + 6667.

It is an arithmetic number, because the mean of its divisors is an integer number (2141640).

Almost surely, 2^8553943 is an apocalyptic number.

8553943 is a deficient number, since it is larger than the sum of its proper divisors (12617).

8553943 is a wasteful number, since it uses less digits than its factorization.

8553943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12616.

The product of its digits is 64800, while the sum is 37.

The square root of 8553943 is about 2924.7124644997. The cubic root of 8553943 is about 204.5135640997.

The spelling of 8553943 in words is "eight million, five hundred fifty-three thousand, nine hundred forty-three".