797308769 has 4 divisors (see below), whose sum is σ = 797365296. Its totient is φ = 797252244.

The previous prime is 797308763. The next prime is 797308783. The reversal of 797308769 is 967803797.

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, and also an emirpimes, since its reverse is a distinct semiprime: 967803797 = 53 ⋅18260449.

It is a cyclic number.

It is not a de Polignac number, because 797308769 - 2⁴ = 797308753 is a prime.

It is a super-2 number, since 2×797308769² = 1271402546248590722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (797308763) 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, 12302 + ... + 41784.

It is an arithmetic number, because the mean of its divisors is an integer number (199341324).

Almost surely, 2^797308769 is an apocalyptic number.

It is an amenable number.

797308769 is a deficient number, since it is larger than the sum of its proper divisors (56527).

797308769 is a wasteful number, since it uses less digits than its factorization.

797308769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56526.

The product of its (nonzero) digits is 4000752, while the sum is 56.

The square root of 797308769 is about 28236.6564769981. The cubic root of 797308769 is about 927.2756316067.

The spelling of 797308769 in words is "seven hundred ninety-seven million, three hundred eight thousand, seven hundred sixty-nine".