871536 has 40 divisors (see below), whose sum is σ = 2293504. Its totient is φ = 285120.

The previous prime is 871531. The next prime is 871553. The reversal of 871536 is 635178.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871531) by changing a digit.

871536 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 7 ways as a sum of consecutive naturals, for example, 3081 + ... + 3351.

2⁸⁷¹⁵³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 871536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1146752).

871536 is an abundant number, since it is smaller than the sum of its proper divisors (1421968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871536 is a wasteful number, since it uses less digits than its factorization.

871536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 343 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 871536 is about 933.5609246321. The cubic root of 871536 is about 95.5201751917.

The spelling of 871536 in words is "eight hundred seventy-one thousand, five hundred thirty-six".