878233 has 4 divisors (see below), whose sum is σ = 880308. Its totient is φ = 876160.

The previous prime is 878221. The next prime is 878239. The reversal of 878233 is 332878.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 458329 + 419904 = 677^2 + 648^2 .

It is a cyclic number.

It is not a de Polignac number, because 878233 - 2⁵ = 878201 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

878233 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 878195 and 878204.

It is not an unprimeable number, because it can be changed into a prime (878239) 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 3 ways as a sum of consecutive naturals, for example, 148 + ... + 1333.

It is an arithmetic number, because the mean of its divisors is an integer number (220077).

2⁸⁷⁸²³³ is an apocalyptic number.

878233 is the 593-rd heptagonal number.

It is an amenable number.

878233 is a deficient number, since it is larger than the sum of its proper divisors (2075).

878233 is a wasteful number, since it uses less digits than its factorization.

878233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074.

The product of its digits is 8064, while the sum is 31.

The square root of 878233 is about 937.1408645449. The cubic root of 878233 is about 95.7642144749.

It can be divided in two parts, 878 and 233, that added together give a palindrome (1111).

The spelling of 878233 in words is "eight hundred seventy-eight thousand, two hundred thirty-three".