878471 has 4 divisors (see below), whose sum is σ = 958344. Its totient is φ = 798600.

The previous prime is 878467. The next prime is 878489. The reversal of 878471 is 174878.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 878471 - 2² = 878467 is a prime.

It is a super-3 number, since 3×878471³ = 2033777986577043333, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39920 + ... + 39941.

It is an arithmetic number, because the mean of its divisors is an integer number (239586).

2⁸⁷⁸⁴⁷¹ is an apocalyptic number.

878471 is a deficient number, since it is larger than the sum of its proper divisors (79873).

878471 is a wasteful number, since it uses less digits than its factorization.

878471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79872.

The product of its digits is 12544, while the sum is 35.

The square root of 878471 is about 937.2678379204. The cubic root of 878471 is about 95.7728643527.

It can be divided in two parts, 87 and 8471, that added together give a palindrome (8558).

The spelling of 878471 in words is "eight hundred seventy-eight thousand, four hundred seventy-one".