28542193 has 2 divisors, whose sum is σ = 28542194. Its totient is φ = 28542192.

The previous prime is 28542179. The next prime is 28542203. The reversal of 28542193 is 39124582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27952369 + 589824 = 5287^2 + 768^2 .

It is a cyclic number.

It is not a de Polignac number, because 28542193 - 2¹³ = 28534001 is a prime.

It is not a weakly prime, because it can be changed into another prime (28542593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14271096 + 14271097.

It is an arithmetic number, because the mean of its divisors is an integer number (14271097).

Almost surely, 2^28542193 is an apocalyptic number.

It is an amenable number.

28542193 is a deficient number, since it is larger than the sum of its proper divisors (1).

28542193 is an equidigital number, since it uses as much as digits as its factorization.

28542193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 28542193 is about 5342.4894010190. The cubic root of 28542193 is about 305.6064008292.

The spelling of 28542193 in words is "twenty-eight million, five hundred forty-two thousand, one hundred ninety-three".