84799 has 8 divisors (see below), whose sum is σ = 99792. Its totient is φ = 71040.

The previous prime is 84793. The next prime is 84809. The reversal of 84799 is 99748.

It is a happy number.

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 84799 - 2¹³ = 76607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84793) 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 7 ways as a sum of consecutive naturals, for example, 154 + ... + 439.

It is an arithmetic number, because the mean of its divisors is an integer number (12474).

2⁸⁴⁷⁹⁹ is an apocalyptic number.

84799 is a deficient number, since it is larger than the sum of its proper divisors (14993).

84799 is a wasteful number, since it uses less digits than its factorization.

84799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617.

The product of its digits is 18144, while the sum is 37.

The square root of 84799 is about 291.2026785591. The cubic root of 84799 is about 43.9336120042.

It can be divided in two parts, 847 and 99, that added together give a triangular number (946 = T₄₃).

The spelling of 84799 in words is "eighty-four thousand, seven hundred ninety-nine".