28098143 has 2 divisors, whose sum is σ = 28098144. Its totient is φ = 28098142.

The previous prime is 28098113. The next prime is 28098149. The reversal of 28098143 is 34189082.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28098143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28098149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14049071 + 14049072.

It is an arithmetic number, because the mean of its divisors is an integer number (14049072).

Almost surely, 2^28098143 is an apocalyptic number.

28098143 is a deficient number, since it is larger than the sum of its proper divisors (1).

28098143 is an equidigital number, since it uses as much as digits as its factorization.

28098143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 28098143 is about 5300.7681518814. The cubic root of 28098143 is about 304.0132691288.

The spelling of 28098143 in words is "twenty-eight million, ninety-eight thousand, one hundred forty-three".