877860 has 36 divisors (see below), whose sum is σ = 2663388. Its totient is φ = 234048.

The previous prime is 877853. The next prime is 877867. The reversal of 877860 is 68778.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (877853) and next prime (877867).

It can be written as a sum of positive squares in 2 ways, for example, as 278784 + 599076 = 528^2 + 774^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 877860.

It is not an unprimeable number, because it can be changed into a prime (877867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2259 + ... + 2618.

It is an arithmetic number, because the mean of its divisors is an integer number (73983).

2⁸⁷⁷⁸⁶⁰ is an apocalyptic number.

It is an amenable number.

877860 is an abundant number, since it is smaller than the sum of its proper divisors (1785528).

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

877860 is a wasteful number, since it uses less digits than its factorization.

877860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4892 (or 4887 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 877860 is about 936.9418338403. The cubic root of 877860 is about 95.7506550094.

The spelling of 877860 in words is "eight hundred seventy-seven thousand, eight hundred sixty".