852811620 has 48 divisors (see below), whose sum is σ = 2389954560. Its totient is φ = 227218176.

The previous prime is 852811607. The next prime is 852811627. The reversal of 852811620 is 26118258.

It is not an unprimeable number, because it can be changed into a prime (852811627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71184 + ... + 82296.

It is an arithmetic number, because the mean of its divisors is an integer number (49790720).

Almost surely, 2^852811620 is an apocalyptic number.

It is an amenable number.

852811620 is an abundant number, since it is smaller than the sum of its proper divisors (1537142940).

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

852811620 is a wasteful number, since it uses less digits than its factorization.

852811620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12404 (or 12402 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 852811620 is about 29202.9385507692. The cubic root of 852811620 is about 948.3115419299.

Adding to 852811620 its reverse (26118258), we get a palindrome (878929878).

The spelling of 852811620 in words is "eight hundred fifty-two million, eight hundred eleven thousand, six hundred twenty".