877728 has 48 divisors (see below), whose sum is σ = 2370816. Its totient is φ = 284160.

The previous prime is 877699. The next prime is 877739. The reversal of 877728 is 827778.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3825 + ... + 4047.

It is an arithmetic number, because the mean of its divisors is an integer number (49392).

2⁸⁷⁷⁷²⁸ 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 877728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1185408).

877728 is an abundant number, since it is smaller than the sum of its proper divisors (1493088).

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

877728 is a wasteful number, since it uses less digits than its factorization.

877728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 269 counting only the distinct ones).

The product of its digits is 43904, while the sum is 39.

The square root of 877728 is about 936.8713892525. The cubic root of 877728 is about 95.7458555653.

The spelling of 877728 in words is "eight hundred seventy-seven thousand, seven hundred twenty-eight".