871456 has 24 divisors (see below), whose sum is σ = 1738044. Its totient is φ = 430080.

The previous prime is 871439. The next prime is 871459. The reversal of 871456 is 654178.

871456 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 2 ways, for example, as 839056 + 32400 = 916^2 + 180^2 .

It is not an unprimeable number, because it can be changed into a prime (871459) by changing a digit.

871456 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3496 + ... + 3736.

2⁸⁷¹⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

871456 is a deficient number, since it is larger than the sum of its proper divisors (866588).

871456 is a wasteful number, since it uses less digits than its factorization.

871456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 356 counting only the distinct ones).

The product of its digits is 6720, while the sum is 31.

The square root of 871456 is about 933.5180769541. The cubic root of 871456 is about 95.5172524408.

The spelling of 871456 in words is "eight hundred seventy-one thousand, four hundred fifty-six".