885780 has 144 divisors (see below), whose sum is σ = 3319680. Its totient is φ = 186624.

The previous prime is 885769. The next prime is 885791. The reversal of 885780 is 87588.

885780 is a `hidden beast` number, since 88 + 578 + 0 = 666.

885780 is nontrivially palindromic in base 11.

It is an interprime number because it is at equal distance from previous prime (885769) and next prime (885791).

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

885780 is a nontrivial repdigit in base 11.

It is a plaindrome in base 11.

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is an unprimeable number.

885780 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23922 + ... + 23958.

2⁸⁸⁵⁷⁸⁰ 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 885780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1659840).

885780 is an abundant number, since it is smaller than the sum of its proper divisors (2433900).

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

885780 is a wasteful number, since it uses less digits than its factorization.

885780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 885780 is about 941.1588601294. The cubic root of 885780 is about 96.0377455738.

The spelling of 885780 in words is "eight hundred eighty-five thousand, seven hundred eighty".