28542863 has 2 divisors, whose sum is σ = 28542864. Its totient is φ = 28542862.

The previous prime is 28542853. The next prime is 28542893. The reversal of 28542863 is 36824582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28542863 - 2¹⁸ = 28280719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28542853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14271431 + 14271432.

It is an arithmetic number, because the mean of its divisors is an integer number (14271432).

Almost surely, 2^28542863 is an apocalyptic number.

28542863 is a deficient number, since it is larger than the sum of its proper divisors (1).

28542863 is an equidigital number, since it uses as much as digits as its factorization.

28542863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 38.

The square root of 28542863 is about 5342.5521055016. The cubic root of 28542863 is about 305.6087920807.

The spelling of 28542863 in words is "twenty-eight million, five hundred forty-two thousand, eight hundred sixty-three".