797161636 has 12 divisors (see below), whose sum is σ = 1395734620. Its totient is φ = 398380320.

The previous prime is 797161627. The next prime is 797161639. The reversal of 797161636 is 636161797.

797161636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 472801536 + 324360100 = 21744^2 + 18010^2 .

It is not an unprimeable number, because it can be changed into a prime (797161639) 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, 40995 + ... + 57226.

Almost surely, 2^797161636 is an apocalyptic number.

It is an amenable number.

797161636 is a deficient number, since it is larger than the sum of its proper divisors (598572984).

797161636 is a wasteful number, since it uses less digits than its factorization.

797161636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100254 (or 100252 counting only the distinct ones).

The product of its digits is 285768, while the sum is 46.

The square root of 797161636 is about 28234.0510022915. The cubic root of 797161636 is about 927.2185891977.

It can be divided in two parts, 797161 and 636, that added together give a palindrome (797797).

The spelling of 797161636 in words is "seven hundred ninety-seven million, one hundred sixty-one thousand, six hundred thirty-six".