871263 has 24 divisors (see below), whose sum is σ = 1371440. Its totient is φ = 546480.

The previous prime is 871259. The next prime is 871271. The reversal of 871263 is 362178.

It is not a de Polignac number, because 871263 - 2² = 871259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14253 + ... + 14313.

2⁸⁷¹²⁶³ is an apocalyptic number.

871263 is a deficient number, since it is larger than the sum of its proper divisors (500177).

871263 is a wasteful number, since it uses less digits than its factorization.

871263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 87 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 871263 is about 933.4146988343. The cubic root of 871263 is about 95.5102005679.

The spelling of 871263 in words is "eight hundred seventy-one thousand, two hundred sixty-three".