845993568 has 96 divisors (see below), whose sum is σ = 2625557760. Its totient is φ = 233372160.

The previous prime is 845993557. The next prime is 845993573. The reversal of 845993568 is 865399548.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2218 + ... + 41193.

It is an arithmetic number, because the mean of its divisors is an integer number (27349560).

Almost surely, 2^845993568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 845993568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312778880).

845993568 is an abundant number, since it is smaller than the sum of its proper divisors (1779564192).

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

845993568 is a wasteful number, since it uses less digits than its factorization.

845993568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43460 (or 43452 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 57.

The square root of 845993568 is about 29085.9685759302. The cubic root of 845993568 is about 945.7775923956. Note that the first 3 decimals are identical.

The spelling of 845993568 in words is "eight hundred forty-five million, nine hundred ninety-three thousand, five hundred sixty-eight".