797797797 has 8 divisors (see below), whose sum is σ = 1065068256. Its totient is φ = 531196272.

The previous prime is 797797789. The next prime is 797797799.

797797797 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 797797797 - 2³ = 797797789 is a prime.

797797797 is a modest number, since divided by 797797 gives 797 as remainder.

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, 164443 + ... + 169224.

It is an arithmetic number, because the mean of its divisors is an integer number (133133532).

Almost surely, 2^797797797 is an apocalyptic number.

It is an amenable number.

797797797 is a deficient number, since it is larger than the sum of its proper divisors (267270459).

797797797 is a wasteful number, since it uses less digits than its factorization.

797797797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334467.

The product of its digits is 85766121, while the sum is 69.

The square root of 797797797 is about 28245.3146026027. The cubic root of 797797797 is about 927.4651738461.

The spelling of 797797797 in words is "seven hundred ninety-seven million, seven hundred ninety-seven thousand, seven hundred ninety-seven".