28657163 has 2 divisors, whose sum is σ = 28657164. Its totient is φ = 28657162.

The previous prime is 28657151. The next prime is 28657201. The reversal of 28657163 is 36175682.

It is an a-pointer prime, because the next prime (28657201) can be obtained adding 28657163 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28657163 - 2¹⁰ = 28656139 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28657063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14328581 + 14328582.

It is an arithmetic number, because the mean of its divisors is an integer number (14328582).

Almost surely, 2^28657163 is an apocalyptic number.

28657163 is a deficient number, since it is larger than the sum of its proper divisors (1).

28657163 is an equidigital number, since it uses as much as digits as its factorization.

28657163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 38.

The square root of 28657163 is about 5353.2385525026. The cubic root of 28657163 is about 306.0161859381.

The spelling of 28657163 in words is "twenty-eight million, six hundred fifty-seven thousand, one hundred sixty-three".