871485 has 8 divisors (see below), whose sum is σ = 1394400. Its totient is φ = 464784.

The previous prime is 871477. The next prime is 871513. The reversal of 871485 is 584178.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 871485 - 2³ = 871477 is a prime.

It is a super-2 number, since 2×871485² = 1518972210450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29035 + ... + 29064.

It is an arithmetic number, because the mean of its divisors is an integer number (174300).

2⁸⁷¹⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

871485 is a deficient number, since it is larger than the sum of its proper divisors (522915).

871485 is a wasteful number, since it uses less digits than its factorization.

871485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58107.

The product of its digits is 8960, while the sum is 33.

The square root of 871485 is about 933.5336094646. The cubic root of 871485 is about 95.5183119586.

It can be divided in two parts, 87148 and 5, that added together give a triangular number (87153 = T₄₁₇).

The spelling of 871485 in words is "eight hundred seventy-one thousand, four hundred eighty-five".