8959143 has 8 divisors (see below), whose sum is σ = 12268528. Its totient is φ = 5811264.

The previous prime is 8959141. The next prime is 8959147. The reversal of 8959143 is 3419598.

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

It is not a de Polignac number, because 8959143 - 2¹ = 8959141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8959141) 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 7 ways as a sum of consecutive naturals, for example, 40246 + ... + 40467.

It is an arithmetic number, because the mean of its divisors is an integer number (1533566).

Almost surely, 2^8959143 is an apocalyptic number.

8959143 is a deficient number, since it is larger than the sum of its proper divisors (3309385).

8959143 is a wasteful number, since it uses less digits than its factorization.

8959143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80753.

The product of its digits is 38880, while the sum is 39.

The square root of 8959143 is about 2993.1827541933. The cubic root of 8959143 is about 207.6931418875.

The spelling of 8959143 in words is "eight million, nine hundred fifty-nine thousand, one hundred forty-three".