797173918 has 12 divisors (see below), whose sum is σ = 1262009160. Its totient is φ = 377608356.

The previous prime is 797173879. The next prime is 797173919. The reversal of 797173918 is 819371797.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797173919) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 551338 + ... + 552781.

It is an arithmetic number, because the mean of its divisors is an integer number (105167430).

Almost surely, 2^797173918 is an apocalyptic number.

797173918 is a deficient number, since it is larger than the sum of its proper divisors (464835242).

797173918 is a wasteful number, since it uses less digits than its factorization.

797173918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104159 (or 1104140 counting only the distinct ones).

The product of its digits is 666792, while the sum is 52.

The square root of 797173918 is about 28234.2685047798. The cubic root of 797173918 is about 927.2233511095.

The spelling of 797173918 in words is "seven hundred ninety-seven million, one hundred seventy-three thousand, nine hundred eighteen".