878393 has 8 divisors (see below), whose sum is σ = 926016. Its totient is φ = 831600.

The previous prime is 878387. The next prime is 878411. The reversal of 878393 is 393878.

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 878393 - 2⁴ = 878377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (878593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4058 + ... + 4268.

It is an arithmetic number, because the mean of its divisors is an integer number (115752).

2⁸⁷⁸³⁹³ is an apocalyptic number.

It is an amenable number.

878393 is a deficient number, since it is larger than the sum of its proper divisors (47623).

878393 is a wasteful number, since it uses less digits than its factorization.

878393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415.

The product of its digits is 36288, while the sum is 38.

The square root of 878393 is about 937.2262266924. The cubic root of 878393 is about 95.7700296910.

The spelling of 878393 in words is "eight hundred seventy-eight thousand, three hundred ninety-three".