797918265 has 12 divisors (see below), whose sum is σ = 1383058404. Its totient is φ = 425556384.

The previous prime is 797918263. The next prime is 797918299. The reversal of 797918265 is 562819797.

It can be written as a sum of positive squares in 2 ways, for example, as 330839721 + 467078544 = 18189^2 + 21612^2 .

It is not a de Polignac number, because 797918265 - 2¹ = 797918263 is a prime.

It is a super-2 number, since 2×797918265² = 1273347115241220450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (797918263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8865714 + ... + 8865803.

It is an arithmetic number, because the mean of its divisors is an integer number (115254867).

Almost surely, 2^797918265 is an apocalyptic number.

It is an amenable number.

797918265 is a deficient number, since it is larger than the sum of its proper divisors (585140139).

797918265 is a wasteful number, since it uses less digits than its factorization.

797918265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17731528 (or 17731525 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 797918265 is about 28247.4470527869. The cubic root of 797918265 is about 927.5118541167.

It can be divided in two parts, 7979 and 18265, that added together give a square (26244 = 162²).

The spelling of 797918265 in words is "seven hundred ninety-seven million, nine hundred eighteen thousand, two hundred sixty-five".