72843 has 4 divisors (see below), whose sum is σ = 97128. Its totient is φ = 48560.

The previous prime is 72823. The next prime is 72859. The reversal of 72843 is 34827.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72843 - 2¹⁶ = 7307 is a prime.

It is a super-2 number, since 2×72843² = 10612205298, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (72823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12138 + ... + 12143.

It is an arithmetic number, because the mean of its divisors is an integer number (24282).

2⁷²⁸⁴³ is an apocalyptic number.

72843 is a deficient number, since it is larger than the sum of its proper divisors (24285).

72843 is a wasteful number, since it uses less digits than its factorization.

72843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24284.

The product of its digits is 1344, while the sum is 24.

The square root of 72843 is about 269.8944238031. The cubic root of 72843 is about 41.7634089861.

It can be divided in two parts, 7 and 2843, that added together give a triangular number (2850 = T₇₅).

The spelling of 72843 in words is "seventy-two thousand, eight hundred forty-three".