28104163 has 2 divisors, whose sum is σ = 28104164. Its totient is φ = 28104162.

The previous prime is 28104133. The next prime is 28104169. The reversal of 28104163 is 36140182.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28104163 is a prime.

It is not a weakly prime, because it can be changed into another prime (28104169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14052081 + 14052082.

It is an arithmetic number, because the mean of its divisors is an integer number (14052082).

Almost surely, 2^28104163 is an apocalyptic number.

28104163 is a deficient number, since it is larger than the sum of its proper divisors (1).

28104163 is an equidigital number, since it uses as much as digits as its factorization.

28104163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 28104163 is about 5301.3359636982. The cubic root of 28104163 is about 304.0349790949.

The spelling of 28104163 in words is "twenty-eight million, one hundred four thousand, one hundred sixty-three".