797561269 has 4 divisors (see below), whose sum is σ = 797635744. Its totient is φ = 797486796.

The previous prime is 797561267. The next prime is 797561311. The reversal of 797561269 is 962165797.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 797561269 - 2¹ = 797561267 is a prime.

It is a super-2 number, since 2×797561269² = 1272207955617780722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (797561267) 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 3 ways as a sum of consecutive naturals, for example, 17787 + ... + 43720.

It is an arithmetic number, because the mean of its divisors is an integer number (199408936).

Almost surely, 2^797561269 is an apocalyptic number.

It is an amenable number.

797561269 is a deficient number, since it is larger than the sum of its proper divisors (74475).

797561269 is a wasteful number, since it uses less digits than its factorization.

797561269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74474.

The product of its digits is 1428840, while the sum is 52.

The square root of 797561269 is about 28241.1272614958. The cubic root of 797561269 is about 927.3735076927.

The spelling of 797561269 in words is "seven hundred ninety-seven million, five hundred sixty-one thousand, two hundred sixty-nine".