878816823 has 16 divisors (see below), whose sum is σ = 1251841920. Its totient is φ = 546755616.

The previous prime is 878816801. The next prime is 878816833. The reversal of 878816823 is 328618878.

It is not a de Polignac number, because 878816823 - 2⁸ = 878816567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878816833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111240 + ... + 118877.

It is an arithmetic number, because the mean of its divisors is an integer number (78240120).

Almost surely, 2^878816823 is an apocalyptic number.

878816823 is a deficient number, since it is larger than the sum of its proper divisors (373025097).

878816823 is a wasteful number, since it uses less digits than its factorization.

878816823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230206.

The product of its digits is 1032192, while the sum is 51.

The square root of 878816823 is about 29644.8447963554. The cubic root of 878816823 is about 957.8543016846.

The spelling of 878816823 in words is "eight hundred seventy-eight million, eight hundred sixteen thousand, eight hundred twenty-three".