28795082317 has 4 divisors (see below), whose sum is σ = 29788016220. Its totient is φ = 27802148416.

The previous prime is 28795082287. The next prime is 28795082377. The reversal of 28795082317 is 71328059782.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18789281476 + 10005800841 = 137074^2 + 100029^2 .

It is a cyclic number.

It is not a de Polignac number, because 28795082317 - 2¹¹ = 28795080269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28795082377) 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, 496466908 + ... + 496466965.

It is an arithmetic number, because the mean of its divisors is an integer number (7447004055).

Almost surely, 2^28795082317 is an apocalyptic number.

It is an amenable number.

28795082317 is a deficient number, since it is larger than the sum of its proper divisors (992933903).

28795082317 is an equidigital number, since it uses as much as digits as its factorization.

28795082317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992933902.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The spelling of 28795082317 in words is "twenty-eight billion, seven hundred ninety-five million, eighty-two thousand, three hundred seventeen".