873663 has 8 divisors (see below), whose sum is σ = 1331328. Its totient is φ = 499224.

The previous prime is 873659. The next prime is 873667. The reversal of 873663 is 366378.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (873659) and next prime (873667).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 873663 - 2² = 873659 is a prime.

It is a d-powerful number, because it can be written as 8³ + 7⁷ + 6² + 3⁶ + 6⁶ + 3⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20781 + ... + 20822.

It is an arithmetic number, because the mean of its divisors is an integer number (166416).

2⁸⁷³⁶⁶³ is an apocalyptic number.

873663 is a deficient number, since it is larger than the sum of its proper divisors (457665).

873663 is a wasteful number, since it uses less digits than its factorization.

873663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41613.

The product of its digits is 18144, while the sum is 33.

The square root of 873663 is about 934.6994169250. The cubic root of 873663 is about 95.5978183241.

The spelling of 873663 in words is "eight hundred seventy-three thousand, six hundred sixty-three".