868505852 has 36 divisors (see below), whose sum is σ = 1598413320. Its totient is φ = 412871712.

The previous prime is 868505851. The next prime is 868505879. The reversal of 868505852 is 258505868.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 868505797 and 868505806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868505851) 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, 377618 + ... + 379910.

It is an arithmetic number, because the mean of its divisors is an integer number (44400370).

Almost surely, 2^868505852 is an apocalyptic number.

It is an amenable number.

868505852 is a deficient number, since it is larger than the sum of its proper divisors (729907468).

868505852 is a wasteful number, since it uses less digits than its factorization.

868505852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522 (or 2497 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 47.

The square root of 868505852 is about 29470.4233427347. The cubic root of 868505852 is about 954.0934543887.

The spelling of 868505852 in words is "eight hundred sixty-eight million, five hundred five thousand, eight hundred fifty-two".