78798 has 16 divisors (see below), whose sum is σ = 164736. Its totient is φ = 25080.

The previous prime is 78797. The next prime is 78803. The reversal of 78798 is 89787.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78791) 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, 148 + ... + 423.

It is an arithmetic number, because the mean of its divisors is an integer number (10296).

2⁷⁸⁷⁹⁸ is an apocalyptic number.

78798 is an abundant number, since it is smaller than the sum of its proper divisors (85938).

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 (82368).

78798 is a wasteful number, since it uses less digits than its factorization.

78798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599.

The product of its digits is 28224, while the sum is 39.

The square root of 78798 is about 280.7098145773. The cubic root of 78798 is about 42.8718013350.

It can be divided in two parts, 7879 and 8, that added together give a palindrome (7887).

The spelling of 78798 in words is "seventy-eight thousand, seven hundred ninety-eight".