845568 has 54 divisors (see below), whose sum is σ = 2444624. Its totient is φ = 281088.

The previous prime is 845567. The next prime is 845599. The reversal of 845568 is 865548.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2121 + ... + 2487.

2⁸⁴⁵⁵⁶⁸ 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 845568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1222312).

845568 is an abundant number, since it is smaller than the sum of its proper divisors (1599056).

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

845568 is a wasteful number, since it uses less digits than its factorization.

845568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 372 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 845568 is about 919.5477149121. The cubic root of 845568 is about 94.5618978035.

The spelling of 845568 in words is "eight hundred forty-five thousand, five hundred sixty-eight".