873866 has 24 divisors (see below), whose sum is σ = 1572516. Its totient is φ = 362880.

The previous prime is 873863. The next prime is 873877. The reversal of 873866 is 668378.

873866 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 2 ways, for example, as 765625 + 108241 = 875^2 + 329^2 .

It is not an unprimeable number, because it can be changed into a prime (873863) 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, 3506 + ... + 3746.

2⁸⁷³⁸⁶⁶ is an apocalyptic number.

873866 is a deficient number, since it is larger than the sum of its proper divisors (698650).

873866 is a wasteful number, since it uses less digits than its factorization.

873866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 287 counting only the distinct ones).

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

The square root of 873866 is about 934.8080016773. The cubic root of 873866 is about 95.6052219623.

The spelling of 873866 in words is "eight hundred seventy-three thousand, eight hundred sixty-six".