878791 has 8 divisors (see below), whose sum is σ = 912384. Its totient is φ = 845880.

The previous prime is 878789. The next prime is 878797. The reversal of 878791 is 197878.

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

It is a cyclic number.

It is not a de Polignac number, because 878791 - 2¹ = 878789 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 (878797) 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 7 ways as a sum of consecutive naturals, for example, 4506 + ... + 4696.

It is an arithmetic number, because the mean of its divisors is an integer number (114048).

2⁸⁷⁸⁷⁹¹ is an apocalyptic number.

878791 is a deficient number, since it is larger than the sum of its proper divisors (33593).

878791 is a wasteful number, since it uses less digits than its factorization.

878791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341.

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

The square root of 878791 is about 937.4385313182. The cubic root of 878791 is about 95.7844919785.

The spelling of 878791 in words is "eight hundred seventy-eight thousand, seven hundred ninety-one".