79798 has 8 divisors (see below), whose sum is σ = 126792. Its totient is φ = 37536.

The previous prime is 79777. The next prime is 79801. The reversal of 79798 is 89797.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 8 and base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 79798.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1140 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (15849).

2⁷⁹⁷⁹⁸ is an apocalyptic number.

79798 is a deficient number, since it is larger than the sum of its proper divisors (46994).

79798 is a wasteful number, since it uses less digits than its factorization.

79798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2366.

The product of its digits is 31752, while the sum is 40.

The square root of 79798 is about 282.4853978527. The cubic root of 79798 is about 43.0523969163.

Subtracting 79798 from its reverse (89797), we obtain a palindrome (9999).

It can be divided in two parts, 7 and 9798, that multiplied together give a palindrome (68586).

The spelling of 79798 in words is "seventy-nine thousand, seven hundred ninety-eight".