28835717 has 2 divisors, whose sum is σ = 28835718. Its totient is φ = 28835716.

The previous prime is 28835699. The next prime is 28835743. The reversal of 28835717 is 71753882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25897921 + 2937796 = 5089^2 + 1714^2 .

It is a cyclic number.

It is not a de Polignac number, because 28835717 - 2²⁰ = 27787141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28835117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14417858 + 14417859.

It is an arithmetic number, because the mean of its divisors is an integer number (14417859).

Almost surely, 2^28835717 is an apocalyptic number.

It is an amenable number.

28835717 is a deficient number, since it is larger than the sum of its proper divisors (1).

28835717 is an equidigital number, since it uses as much as digits as its factorization.

28835717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 41.

The square root of 28835717 is about 5369.8898498945. The cubic root of 28835717 is about 306.6504348424.

The spelling of 28835717 in words is "twenty-eight million, eight hundred thirty-five thousand, seven hundred seventeen".