820574852 has 12 divisors (see below), whose sum is σ = 1453307856. Its totient is φ = 405344040.

The previous prime is 820574851. The next prime is 820574857. The reversal of 820574852 is 258475028.

It is not an unprimeable number, because it can be changed into a prime (820574851) 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, 1235474 + ... + 1236137.

It is an arithmetic number, because the mean of its divisors is an integer number (121108988).

Almost surely, 2^820574852 is an apocalyptic number.

It is an amenable number.

820574852 is a deficient number, since it is larger than the sum of its proper divisors (632733004).

820574852 is a wasteful number, since it uses less digits than its factorization.

820574852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471698 (or 2471696 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 41.

The square root of 820574852 is about 28645.6777193349. The cubic root of 820574852 is about 936.2088330999.

The spelling of 820574852 in words is "eight hundred twenty million, five hundred seventy-four thousand, eight hundred fifty-two".