8871143 has 2 divisors, whose sum is σ = 8871144. Its totient is φ = 8871142.

The previous prime is 8871139. The next prime is 8871151. The reversal of 8871143 is 3411788.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8871143 - 2² = 8871139 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8871103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4435571 + 4435572.

It is an arithmetic number, because the mean of its divisors is an integer number (4435572).

Almost surely, 2^8871143 is an apocalyptic number.

8871143 is a deficient number, since it is larger than the sum of its proper divisors (1).

8871143 is an equidigital number, since it uses as much as digits as its factorization.

8871143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 32.

The square root of 8871143 is about 2978.4464071056. The cubic root of 8871143 is about 207.0108903852.

The spelling of 8871143 in words is "eight million, eight hundred seventy-one thousand, one hundred forty-three".