877904 has 10 divisors (see below), whose sum is σ = 1700970. Its totient is φ = 438944.

The previous prime is 877883. The next prime is 877907. The reversal of 877904 is 409778.

It can be written as a sum of positive squares in only one way, i.e., 577600 + 300304 = 760^2 + 548^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (877907) by changing a digit.

877904 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, 27419 + ... + 27450.

It is an arithmetic number, because the mean of its divisors is an integer number (170097).

2⁸⁷⁷⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

877904 is a deficient number, since it is larger than the sum of its proper divisors (823066).

877904 is a wasteful number, since it uses less digits than its factorization.

877904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54877 (or 54871 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 877904 is about 936.9653141926. The cubic root of 877904 is about 95.7522547172.

The spelling of 877904 in words is "eight hundred seventy-seven thousand, nine hundred four".