797808798 has 32 divisors (see below), whose sum is σ = 1799377920. Its totient is φ = 261965880.

The previous prime is 797808779. The next prime is 797808829. The reversal of 797808798 is 897808797.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106638 + ... + 113873.

It is an arithmetic number, because the mean of its divisors is an integer number (56230560).

Almost surely, 2^797808798 is an apocalyptic number.

797808798 is an abundant number, since it is smaller than the sum of its proper divisors (1001569122).

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

797808798 is a wasteful number, since it uses less digits than its factorization.

797808798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220589 (or 220583 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 63.

The square root of 797808798 is about 28245.5093421946. The cubic root of 797808798 is about 927.4694368300.

Subtracting 797808798 from its reverse (897808797), we obtain a palindrome (99999999).

The spelling of 797808798 in words is "seven hundred ninety-seven million, eight hundred eight thousand, seven hundred ninety-eight".