84643 has 8 divisors (see below), whose sum is σ = 96768. Its totient is φ = 73344.

The previous prime is 84631. The next prime is 84649. The reversal of 84643 is 34648.

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

It is a cyclic number.

It is not a de Polignac number, because 84643 - 2⁹ = 84131 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (84649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30 + ... + 412.

It is an arithmetic number, because the mean of its divisors is an integer number (12096).

2⁸⁴⁶⁴³ is an apocalyptic number.

84643 is a deficient number, since it is larger than the sum of its proper divisors (12125).

84643 is a wasteful number, since it uses less digits than its factorization.

84643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413.

The product of its digits is 2304, while the sum is 25.

The square root of 84643 is about 290.9347005773. The cubic root of 84643 is about 43.9066547267.

It can be divided in two parts, 84 and 643, that added together give a palindrome (727).

The spelling of 84643 in words is "eighty-four thousand, six hundred forty-three".