877980 has 24 divisors (see below), whose sum is σ = 2458512. Its totient is φ = 234112.

The previous prime is 877949. The next prime is 877997. The reversal of 877980 is 89778.

It is a congruent number.

It is an unprimeable number.

877980 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7257 + ... + 7376.

It is an arithmetic number, because the mean of its divisors is an integer number (102438).

2⁸⁷⁷⁹⁸⁰ is an apocalyptic number.

It is an amenable number.

877980 is an abundant number, since it is smaller than the sum of its proper divisors (1580532).

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

877980 is a wasteful number, since it uses less digits than its factorization.

877980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14645 (or 14643 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 877980 is about 937.0058697788. The cubic root of 877980 is about 95.7550177229.

The spelling of 877980 in words is "eight hundred seventy-seven thousand, nine hundred eighty".