797666797 has 16 divisors (see below), whose sum is σ = 868364800. Its totient is φ = 729933120.

The previous prime is 797666789. The next prime is 797666833.

797666797 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 797666797 - 2³ = 797666789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797666747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444979 + ... + 446767.

It is an arithmetic number, because the mean of its divisors is an integer number (54272800).

Almost surely, 2^797666797 is an apocalyptic number.

It is an amenable number.

797666797 is a deficient number, since it is larger than the sum of its proper divisors (70698003).

797666797 is a wasteful number, since it uses less digits than its factorization.

797666797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596.

The product of its digits is 42007896, while the sum is 64.

The square root of 797666797 is about 28242.9955387172. The cubic root of 797666797 is about 927.4144071861.

The spelling of 797666797 in words is "seven hundred ninety-seven million, six hundred sixty-six thousand, seven hundred ninety-seven".