1004871 has 16 divisors (see below), whose sum is σ = 1548800. Its totient is φ = 567648.

The previous prime is 1004797. The next prime is 1004873. The reversal of 1004871 is 1784001.

It is not a de Polignac number, because 1004871 - 2⁷ = 1004743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2070 + ... + 2508.

It is an arithmetic number, because the mean of its divisors is an integer number (96800).

2^1004871 is an apocalyptic number.

1004871 is a deficient number, since it is larger than the sum of its proper divisors (543929).

1004871 is a wasteful number, since it uses less digits than its factorization.

1004871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1004871 is about 1002.4325413712. The cubic root of 1004871 is about 100.1621037484.

Adding to 1004871 its reverse (1784001), we get a palindrome (2788872).

The spelling of 1004871 in words is "one million, four thousand, eight hundred seventy-one".