843872 has 12 divisors (see below), whose sum is σ = 1661436. Its totient is φ = 421920.

The previous prime is 843841. The next prime is 843881. The reversal of 843872 is 278348.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 26371 = 843872 / (8 + 4 + 3 + 8 + 7 + 2).

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13154 + ... + 13217.

It is an arithmetic number, because the mean of its divisors is an integer number (138453).

2⁸⁴³⁸⁷² is an apocalyptic number.

It is an amenable number.

843872 is a deficient number, since it is larger than the sum of its proper divisors (817564).

843872 is a wasteful number, since it uses less digits than its factorization.

843872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26381 (or 26373 counting only the distinct ones).

The product of its digits is 10752, while the sum is 32.

The square root of 843872 is about 918.6250595319. The cubic root of 843872 is about 94.4986329039.

The spelling of 843872 in words is "eight hundred forty-three thousand, eight hundred seventy-two".