878971 has 4 divisors (see below), whose sum is σ = 884944. Its totient is φ = 873000.

The previous prime is 878957. The next prime is 878987. The reversal of 878971 is 179878.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179878 = 2 ⋅89939.

It is a cyclic number.

It is not a de Polignac number, because 878971 - 2⁵ = 878939 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (876971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2760 + ... + 3061.

It is an arithmetic number, because the mean of its divisors is an integer number (221236).

2⁸⁷⁸⁹⁷¹ is an apocalyptic number.

878971 is a deficient number, since it is larger than the sum of its proper divisors (5973).

878971 is a wasteful number, since it uses less digits than its factorization.

878971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5972.

The product of its digits is 28224, while the sum is 40.

The square root of 878971 is about 937.5345326973. The cubic root of 878971 is about 95.7910312776.

It can be divided in two parts, 878 and 971, that added together give a square (1849 = 43²).

The spelling of 878971 in words is "eight hundred seventy-eight thousand, nine hundred seventy-one".