28795397 has 2 divisors, whose sum is σ = 28795398. Its totient is φ = 28795396.

The previous prime is 28795391. The next prime is 28795427. The reversal of 28795397 is 79359782.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23804641 + 4990756 = 4879^2 + 2234^2 .

It is a cyclic number.

It is not a de Polignac number, because 28795397 - 2⁸ = 28795141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28795391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14397698 + 14397699.

It is an arithmetic number, because the mean of its divisors is an integer number (14397699).

Almost surely, 2^28795397 is an apocalyptic number.

It is an amenable number.

28795397 is a deficient number, since it is larger than the sum of its proper divisors (1).

28795397 is an equidigital number, since it uses as much as digits as its factorization.

28795397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 952560, while the sum is 50.

The square root of 28795397 is about 5366.1342696582. The cubic root of 28795397 is about 306.5074418914.

It can be divided in two parts, 28795 and 397, that added together give a palindrome (29192).

The spelling of 28795397 in words is "twenty-eight million, seven hundred ninety-five thousand, three hundred ninety-seven".