844865552 has 20 divisors (see below), whose sum is σ = 1723081680. Its totient is φ = 400199328.

The previous prime is 844865551. The next prime is 844865569. The reversal of 844865552 is 255568448.

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

It is a junction number, because it is equal to n+sod(n) for n = 844865497 and 844865506.

It is not an unprimeable number, because it can be changed into a prime (844865551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1389278 + ... + 1389885.

It is an arithmetic number, because the mean of its divisors is an integer number (86154084).

Almost surely, 2^844865552 is an apocalyptic number.

It is an amenable number.

844865552 is an abundant number, since it is smaller than the sum of its proper divisors (878216128).

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

844865552 is a wasteful number, since it uses less digits than its factorization.

844865552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2779190 (or 2779184 counting only the distinct ones).

The product of its digits is 1536000, while the sum is 47.

The square root of 844865552 is about 29066.5710395980. The cubic root of 844865552 is about 945.3570506738.

The spelling of 844865552 in words is "eight hundred forty-four million, eight hundred sixty-five thousand, five hundred fifty-two".