863876 has 24 divisors (see below), whose sum is σ = 1675800. Its totient is φ = 387072.

The previous prime is 863869. The next prime is 863879. The reversal of 863876 is 678368.

It can be written as a sum of positive squares in 4 ways, for example, as 184900 + 678976 = 430^2 + 824^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863879) by changing a digit.

863876 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 in 7 ways as a sum of consecutive naturals, for example, 1700 + ... + 2148.

It is an arithmetic number, because the mean of its divisors is an integer number (69825).

2⁸⁶³⁸⁷⁶ is an apocalyptic number.

It is an amenable number.

863876 is a deficient number, since it is larger than the sum of its proper divisors (811924).

863876 is a wasteful number, since it uses less digits than its factorization.

863876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 501 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 863876 is about 929.4492993165. The cubic root of 863876 is about 95.2395064712.

It can be divided in two parts, 86 and 3876, that multiplied together give a triangular number (333336 = T₈₁₆).

The spelling of 863876 in words is "eight hundred sixty-three thousand, eight hundred seventy-six".