797797798 has 16 divisors (see below), whose sum is σ = 1370280960. Its totient is φ = 341256456.

The previous prime is 797797789. The next prime is 797797799. The reversal of 797797798 is 897797797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797797799) 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, 47158 + ... + 61801.

It is an arithmetic number, because the mean of its divisors is an integer number (85642560).

Almost surely, 2^797797798 is an apocalyptic number.

797797798 is a deficient number, since it is larger than the sum of its proper divisors (572483162).

797797798 is a wasteful number, since it uses less digits than its factorization.

797797798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109491.

The product of its digits is 98018424, while the sum is 70.

The square root of 797797798 is about 28245.3146203047. The cubic root of 797797798 is about 927.4651742336.

Subtracting 797797798 from its reverse (897797797), we obtain a palindrome (99999999).

The spelling of 797797798 in words is "seven hundred ninety-seven million, seven hundred ninety-seven thousand, seven hundred ninety-eight".