871455 has 32 divisors (see below), whose sum is σ = 1552320. Its totient is φ = 414720.

The previous prime is 871439. The next prime is 871459. The reversal of 871455 is 554178.

It is not a de Polignac number, because 871455 - 2⁴ = 871439 is a prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 871455.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7941 + ... + 8049.

It is an arithmetic number, because the mean of its divisors is an integer number (48510).

2⁸⁷¹⁴⁵⁵ is an apocalyptic number.

871455 is a deficient number, since it is larger than the sum of its proper divisors (680865).

871455 is a wasteful number, since it uses less digits than its factorization.

871455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171.

The product of its digits is 5600, while the sum is 30.

The square root of 871455 is about 933.5175413456. The cubic root of 871455 is about 95.5172159053.

It can be divided in two parts, 871 and 455, that added together give a triangular number (1326 = T₅₁).

The spelling of 871455 in words is "eight hundred seventy-one thousand, four hundred fifty-five".