878438 has 8 divisors (see below), whose sum is σ = 1437480. Its totient is φ = 399280.

The previous prime is 878419. The next prime is 878443. The reversal of 878438 is 834878.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19943 + ... + 19986.

It is an arithmetic number, because the mean of its divisors is an integer number (179685).

2⁸⁷⁸⁴³⁸ is an apocalyptic number.

878438 is a deficient number, since it is larger than the sum of its proper divisors (559042).

878438 is a wasteful number, since it uses less digits than its factorization.

878438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39942.

The product of its digits is 43008, while the sum is 38.

The square root of 878438 is about 937.2502333955. The cubic root of 878438 is about 95.7716650932.

The spelling of 878438 in words is "eight hundred seventy-eight thousand, four hundred thirty-eight".