873906 has 16 divisors (see below), whose sum is σ = 1906848. Its totient is φ = 264800.

The previous prime is 873877. The next prime is 873913. The reversal of 873906 is 609378.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 873906.

It is an unprimeable 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, 6555 + ... + 6686.

It is an arithmetic number, because the mean of its divisors is an integer number (119178).

2⁸⁷³⁹⁰⁶ is an apocalyptic number.

873906 is an abundant number, since it is smaller than the sum of its proper divisors (1032942).

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

873906 is a wasteful number, since it uses less digits than its factorization.

873906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13257.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 873906 is about 934.8293962002. The cubic root of 873906 is about 95.6066806720.

It can be divided in two parts, 87 and 3906, that added together give a palindrome (3993).

The spelling of 873906 in words is "eight hundred seventy-three thousand, nine hundred six".