873646 has 8 divisors (see below), whose sum is σ = 1323504. Its totient is φ = 432480.

The previous prime is 873643. The next prime is 873659. The reversal of 873646 is 646378.

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

It is a d-powerful number, because it can be written as 8⁵ + 7⁷ + 6 + 3⁶ + 4⁷ + 6³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1915 + ... + 2326.

It is an arithmetic number, because the mean of its divisors is an integer number (165438).

2⁸⁷³⁶⁴⁶ is an apocalyptic number.

873646 is a deficient number, since it is larger than the sum of its proper divisors (449858).

873646 is a wasteful number, since it uses less digits than its factorization.

873646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346.

The product of its digits is 24192, while the sum is 34.

The square root of 873646 is about 934.6903230482. The cubic root of 873646 is about 95.5971982629.

It can be divided in two parts, 8736 and 46, that multiplied together give a triangular number (401856 = T₈₉₆).

The spelling of 873646 in words is "eight hundred seventy-three thousand, six hundred forty-six".