797181872 has 20 divisors (see below), whose sum is σ = 1586285376. Its totient is φ = 387817920.

The previous prime is 797181829. The next prime is 797181881. The reversal of 797181872 is 278181797.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 797181872.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672704 + ... + 673887.

Almost surely, 2^797181872 is an apocalyptic number.

It is an amenable number.

797181872 is a deficient number, since it is larger than the sum of its proper divisors (789103504).

797181872 is a wasteful number, since it uses less digits than its factorization.

797181872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346636 (or 1346630 counting only the distinct ones).

The product of its digits is 395136, while the sum is 50.

The square root of 797181872 is about 28234.4093616282. The cubic root of 797181872 is about 927.2264349660.

The spelling of 797181872 in words is "seven hundred ninety-seven million, one hundred eighty-one thousand, eight hundred seventy-two".