878911 has 4 divisors (see below), whose sum is σ = 958824. Its totient is φ = 799000.

The previous prime is 878893. The next prime is 878929. The reversal of 878911 is 119878.

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

It is an interprime number because it is at equal distance from previous prime (878893) and next prime (878929).

It is a cyclic number.

It is not a de Polignac number, because 878911 - 2⁷ = 878783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878011) 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, 39940 + ... + 39961.

It is an arithmetic number, because the mean of its divisors is an integer number (239706).

2⁸⁷⁸⁹¹¹ is an apocalyptic number.

878911 is a deficient number, since it is larger than the sum of its proper divisors (79913).

878911 is a wasteful number, since it uses less digits than its factorization.

878911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79912.

The product of its digits is 4032, while the sum is 34.

The square root of 878911 is about 937.5025333299. The cubic root of 878911 is about 95.7888516104.

It can be divided in two parts, 87 and 8911, that added together give a palindrome (8998).

The spelling of 878911 in words is "eight hundred seventy-eight thousand, nine hundred eleven".