852288813 has 12 divisors (see below), whose sum is σ = 1254312540. Its totient is φ = 557471616.

The previous prime is 852288769. The next prime is 852288869. The reversal of 852288813 is 318882258.

It can be written as a sum of positive squares in 2 ways, for example, as 245799684 + 606489129 = 15678^2 + 24627^2 .

It is not a de Polignac number, because 852288813 - 2²⁸ = 583853357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852288883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 892908 + ... + 893861.

It is an arithmetic number, because the mean of its divisors is an integer number (104526045).

Almost surely, 2^852288813 is an apocalyptic number.

It is an amenable number.

852288813 is a deficient number, since it is larger than the sum of its proper divisors (402023727).

852288813 is a wasteful number, since it uses less digits than its factorization.

852288813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786828 (or 1786825 counting only the distinct ones).

The product of its digits is 245760, while the sum is 45.

The square root of 852288813 is about 29193.9859046345. The cubic root of 852288813 is about 948.1177182504.

The spelling of 852288813 in words is "eight hundred fifty-two million, two hundred eighty-eight thousand, eight hundred thirteen".