28760717 has 2 divisors, whose sum is σ = 28760718. Its totient is φ = 28760716.

The previous prime is 28760687. The next prime is 28760773. The reversal of 28760717 is 71706782.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27237961 + 1522756 = 5219^2 + 1234^2 .

It is a cyclic number.

It is not a de Polignac number, because 28760717 - 2⁸ = 28760461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28760117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14380358 + 14380359.

It is an arithmetic number, because the mean of its divisors is an integer number (14380359).

Almost surely, 2^28760717 is an apocalyptic number.

It is an amenable number.

28760717 is a deficient number, since it is larger than the sum of its proper divisors (1).

28760717 is an equidigital number, since it uses as much as digits as its factorization.

28760717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32928, while the sum is 38.

The square root of 28760717 is about 5362.9019196700. The cubic root of 28760717 is about 306.3843441123.

The spelling of 28760717 in words is "twenty-eight million, seven hundred sixty thousand, seven hundred seventeen".