878193 has 6 divisors (see below), whose sum is σ = 1268514. Its totient is φ = 585456.

The previous prime is 878191. The next prime is 878197. The reversal of 878193 is 391878.

It can be written as a sum of positive squares in only one way, i.e., 589824 + 288369 = 768^2 + 537^2 .

It is not a de Polignac number, because 878193 - 2¹ = 878191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (878191) 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 5 ways as a sum of consecutive naturals, for example, 48780 + ... + 48797.

It is an arithmetic number, because the mean of its divisors is an integer number (211419).

2⁸⁷⁸¹⁹³ is an apocalyptic number.

It is an amenable number.

878193 is a deficient number, since it is larger than the sum of its proper divisors (390321).

878193 is a wasteful number, since it uses less digits than its factorization.

878193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97583 (or 97580 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 878193 is about 937.1195227931. The cubic root of 878193 is about 95.7627605605.

The spelling of 878193 in words is "eight hundred seventy-eight thousand, one hundred ninety-three".