878427 has 24 divisors (see below), whose sum is σ = 1460160. Its totient is φ = 503280.

The previous prime is 878419. The next prime is 878443. The reversal of 878427 is 724878.

It is not a de Polignac number, because 878427 - 2³ = 878419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 878391 and 878400.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 878427.

It is not an unprimeable number, because it can be changed into a prime (878467) 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 23 ways as a sum of consecutive naturals, for example, 1648 + ... + 2114.

It is an arithmetic number, because the mean of its divisors is an integer number (60840).

2⁸⁷⁸⁴²⁷ is an apocalyptic number.

878427 is a deficient number, since it is larger than the sum of its proper divisors (581733).

878427 is a wasteful number, since it uses less digits than its factorization.

878427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 500 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 878427 is about 937.2443651471. The cubic root of 878427 is about 95.7712653334.

The spelling of 878427 in words is "eight hundred seventy-eight thousand, four hundred twenty-seven".