1028871 has 6 divisors (see below), whose sum is σ = 1486160. Its totient is φ = 685908.

The previous prime is 1028843. The next prime is 1028873. The reversal of 1028871 is 1788201.

It is not a de Polignac number, because 1028871 - 2¹⁵ = 996103 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 (1028873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57151 + ... + 57168.

2^1028871 is an apocalyptic number.

1028871 is a deficient number, since it is larger than the sum of its proper divisors (457289).

1028871 is a wasteful number, since it uses less digits than its factorization.

1028871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114325 (or 114322 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 1028871 is about 1014.3327856281. The cubic root of 1028871 is about 100.9532509199.

The spelling of 1028871 in words is "one million, twenty-eight thousand, eight hundred seventy-one".