28800517 has 2 divisors, whose sum is σ = 28800518. Its totient is φ = 28800516.

The previous prime is 28800503. The next prime is 28800547. The reversal of 28800517 is 71500882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28793956 + 6561 = 5366^2 + 81^2 .

It is a cyclic number.

It is not a de Polignac number, because 28800517 - 2¹⁵ = 28767749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28800547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14400258 + 14400259.

It is an arithmetic number, because the mean of its divisors is an integer number (14400259).

Almost surely, 2^28800517 is an apocalyptic number.

It is an amenable number.

28800517 is a deficient number, since it is larger than the sum of its proper divisors (1).

28800517 is an equidigital number, since it uses as much as digits as its factorization.

28800517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 28800517 is about 5366.6113144143. The cubic root of 28800517 is about 306.5256071223.

The spelling of 28800517 in words is "twenty-eight million, eight hundred thousand, five hundred seventeen".