98780 has 24 divisors (see below), whose sum is σ = 226800. Its totient is φ = 35840.

The previous prime is 98779. The next prime is 98801. The reversal of 98780 is 8789.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5 + ... + 444.

It is an arithmetic number, because the mean of its divisors is an integer number (9450).

2⁹⁸⁷⁸⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 98780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113400).

98780 is an abundant number, since it is smaller than the sum of its proper divisors (128020).

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

98780 is a wasteful number, since it uses less digits than its factorization.

98780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 98780 is about 314.2928570617. The cubic root of 98780 is about 46.2263575292.

It can be divided in two parts, 98 and 780, that added together give a palindrome (878).

The spelling of 98780 in words is "ninety-eight thousand, seven hundred eighty".