868686852 has 24 divisors (see below), whose sum is σ = 2211203232. Its totient is φ = 263238400.

The previous prime is 868686799. The next prime is 868686857. The reversal of 868686852 is 258686868.

It is a junction number, because it is equal to n+sod(n) for n = 868686792 and 868686801.

It is not an unprimeable number, because it can be changed into a prime (868686857) 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 7 ways as a sum of consecutive naturals, for example, 3290349 + ... + 3290612.

It is an arithmetic number, because the mean of its divisors is an integer number (92133468).

Almost surely, 2^868686852 is an apocalyptic number.

It is an amenable number.

868686852 is an abundant number, since it is smaller than the sum of its proper divisors (1342516380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

868686852 is a wasteful number, since it uses less digits than its factorization.

868686852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6580979 (or 6580977 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 57.

The square root of 868686852 is about 29473.4940582212. The cubic root of 868686852 is about 954.1597287148.

The spelling of 868686852 in words is "eight hundred sixty-eight million, six hundred eighty-six thousand, eight hundred fifty-two".