871244 has 12 divisors (see below), whose sum is σ = 1663368. Its totient is φ = 396000.

The previous prime is 871231. The next prime is 871249. The reversal of 871244 is 442178.

871244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×871244² = 1518132215072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (871249) by changing a digit.

871244 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9857 + ... + 9944.

It is an arithmetic number, because the mean of its divisors is an integer number (138614).

2⁸⁷¹²⁴⁴ is an apocalyptic number.

It is an amenable number.

871244 is a deficient number, since it is larger than the sum of its proper divisors (792124).

871244 is a wasteful number, since it uses less digits than its factorization.

871244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19816 (or 19814 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 871244 is about 933.4045210947. The cubic root of 871244 is about 95.5095062858.

It can be divided in two parts, 87 and 1244, that added together give a palindrome (1331).

The spelling of 871244 in words is "eight hundred seventy-one thousand, two hundred forty-four".