878563 has 4 divisors (see below), whose sum is σ = 1004080. Its totient is φ = 753048.

The previous prime is 878551. The next prime is 878567. The reversal of 878563 is 365878.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-878563 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (878567) 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 3 ways as a sum of consecutive naturals, for example, 62748 + ... + 62761.

It is an arithmetic number, because the mean of its divisors is an integer number (251020).

2⁸⁷⁸⁵⁶³ is an apocalyptic number.

878563 is a deficient number, since it is larger than the sum of its proper divisors (125517).

878563 is a wasteful number, since it uses less digits than its factorization.

878563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125516.

The product of its digits is 40320, while the sum is 37.

The square root of 878563 is about 937.3169154560. The cubic root of 878563 is about 95.7762075843.

It can be divided in two parts, 878 and 563, that added together give a palindrome (1441).

The spelling of 878563 in words is "eight hundred seventy-eight thousand, five hundred sixty-three".