28500163 has 2 divisors, whose sum is σ = 28500164. Its totient is φ = 28500162.

The previous prime is 28500139. The next prime is 28500239. The reversal of 28500163 is 36100582.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28500163 - 2⁹ = 28499651 is a prime.

It is not a weakly prime, because it can be changed into another prime (28500103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14250081 + 14250082.

It is an arithmetic number, because the mean of its divisors is an integer number (14250082).

Almost surely, 2^28500163 is an apocalyptic number.

28500163 is a deficient number, since it is larger than the sum of its proper divisors (1).

28500163 is an equidigital number, since it uses as much as digits as its factorization.

28500163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 28500163 is about 5338.5543923426. The cubic root of 28500163 is about 305.4563195442.

The spelling of 28500163 in words is "twenty-eight million, five hundred thousand, one hundred sixty-three".