84798 has 24 divisors (see below), whose sum is σ = 210288. Its totient is φ = 24192.

The previous prime is 84793. The next prime is 84809. The reversal of 84798 is 89748.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 84798.

It is not an unprimeable number, because it can be changed into a prime (84793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211 + ... + 462.

It is an arithmetic number, because the mean of its divisors is an integer number (8762).

2⁸⁴⁷⁹⁸ is an apocalyptic number.

84798 is an abundant number, since it is smaller than the sum of its proper divisors (125490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105144).

84798 is a wasteful number, since it uses less digits than its factorization.

84798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 685 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 84798 is about 291.2009615369. The cubic root of 84798 is about 43.9334393065.

Subtracting 84798 from its reverse (89748), we obtain a triangular number (4950 = T₉₉).

The spelling of 84798 in words is "eighty-four thousand, seven hundred ninety-eight".