84849 has 4 divisors (see below), whose sum is σ = 113136. Its totient is φ = 56564.

The previous prime is 84827. The next prime is 84857. The reversal of 84849 is 94848.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 84849 - 2¹⁵ = 52081 is a prime.

It is a D-number.

84849 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (84809) 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, 14139 + ... + 14144.

It is an arithmetic number, because the mean of its divisors is an integer number (28284).

2⁸⁴⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

84849 is a deficient number, since it is larger than the sum of its proper divisors (28287).

84849 is a wasteful number, since it uses less digits than its factorization.

84849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28286.

The product of its digits is 9216, while the sum is 33.

The square root of 84849 is about 291.2885167665. The cubic root of 84849 is about 43.9422451602.

Subtracting 84849 from its reverse (94848), we obtain a palindrome (9999).

The spelling of 84849 in words is "eighty-four thousand, eight hundred forty-nine".