877928 has 8 divisors (see below), whose sum is σ = 1646130. Its totient is φ = 438960.

The previous prime is 877909. The next prime is 877937. The reversal of 877928 is 829778.

877928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 515524 + 362404 = 718^2 + 602^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

877928 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54863 + ... + 54878.

2⁸⁷⁷⁹²⁸ is an apocalyptic number.

It is an amenable number.

877928 is a deficient number, since it is larger than the sum of its proper divisors (768202).

877928 is a wasteful number, since it uses less digits than its factorization.

877928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109747 (or 109743 counting only the distinct ones).

The product of its digits is 56448, while the sum is 41.

The square root of 877928 is about 936.9781214095. The cubic root of 877928 is about 95.7531272626.

Adding to 877928 its sum of digits (41), we get a square (877969 = 937²).

The spelling of 877928 in words is "eight hundred seventy-seven thousand, nine hundred twenty-eight".