845880 has 128 divisors (see below), whose sum is σ = 3110400. Its totient is φ = 179712.

The previous prime is 845879. The next prime is 845881. The reversal of 845880 is 88548.

It is an interprime number because it is at equal distance from previous prime (845879) and next prime (845881).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 845880.

It is not an unprimeable number, because it can be changed into a prime (845881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15934 + ... + 15986.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2⁸⁴⁵⁸⁸⁰ 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 845880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1555200).

845880 is an abundant number, since it is smaller than the sum of its proper divisors (2264520).

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

845880 is a wasteful number, since it uses less digits than its factorization.

845880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 845880 is about 919.7173478847. The cubic root of 845880 is about 94.5735269428.

The spelling of 845880 in words is "eight hundred forty-five thousand, eight hundred eighty".