885878813 has 4 divisors (see below), whose sum is σ = 886269468. Its totient is φ = 885488160.

The previous prime is 885878779. The next prime is 885878821. The reversal of 885878813 is 318878588.

It is a happy number.

885878813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 496487524 + 389391289 = 22282^2 + 19733^2 .

It is a cyclic number.

It is not a de Polignac number, because 885878813 - 2²⁸ = 617443357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (885878713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191906 + ... + 196467.

It is an arithmetic number, because the mean of its divisors is an integer number (221567367).

Almost surely, 2^885878813 is an apocalyptic number.

It is an amenable number.

885878813 is a deficient number, since it is larger than the sum of its proper divisors (390655).

885878813 is a wasteful number, since it uses less digits than its factorization.

885878813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390654.

The product of its digits is 3440640, while the sum is 56.

The square root of 885878813 is about 29763.7163842152. The cubic root of 885878813 is about 960.4131659779.

The spelling of 885878813 in words is "eight hundred eighty-five million, eight hundred seventy-eight thousand, eight hundred thirteen".