878224 has 20 divisors (see below), whose sum is σ = 1718640. Its totient is φ = 434720.

The previous prime is 878221. The next prime is 878239. The reversal of 878224 is 422878.

It is not an unprimeable number, because it can be changed into a prime (878221) 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, 1887 + ... + 2305.

It is an arithmetic number, because the mean of its divisors is an integer number (85932).

2⁸⁷⁸²²⁴ is an apocalyptic number.

It is an amenable number.

878224 is a deficient number, since it is larger than the sum of its proper divisors (840416).

878224 is a wasteful number, since it uses less digits than its factorization.

878224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 552 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 878224 is about 937.1360626931. The cubic root of 878224 is about 95.7638873480.

The spelling of 878224 in words is "eight hundred seventy-eight thousand, two hundred twenty-four".