797216671 has 4 divisors (see below), whose sum is σ = 797587744. Its totient is φ = 796845600.

The previous prime is 797216663. The next prime is 797216681. The reversal of 797216671 is 176612797.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 797216671 - 2³ = 797216663 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 (797216621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182295 + ... + 186616.

It is an arithmetic number, because the mean of its divisors is an integer number (199396936).

Almost surely, 2^797216671 is an apocalyptic number.

797216671 is a deficient number, since it is larger than the sum of its proper divisors (371073).

797216671 is a wasteful number, since it uses less digits than its factorization.

797216671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371072.

The product of its digits is 222264, while the sum is 46.

The square root of 797216671 is about 28235.0256065051. The cubic root of 797216671 is about 927.2399266941.

The spelling of 797216671 in words is "seven hundred ninety-seven million, two hundred sixteen thousand, six hundred seventy-one".