877986 has 32 divisors (see below), whose sum is σ = 1987200. Its totient is φ = 287280.

The previous prime is 877949. The next prime is 877997. The reversal of 877986 is 689778.

877986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 3720 + ... + 3948.

It is an arithmetic number, because the mean of its divisors is an integer number (62100).

2⁸⁷⁷⁹⁸⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 877986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (993600).

877986 is an abundant number, since it is smaller than the sum of its proper divisors (1109214).

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

877986 is a wasteful number, since it uses less digits than its factorization.

877986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 305 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 877986 is about 937.0090714609. The cubic root of 877986 is about 95.7552358482.

The spelling of 877986 in words is "eight hundred seventy-seven thousand, nine hundred eighty-six".