28298843 has 2 divisors, whose sum is σ = 28298844. Its totient is φ = 28298842.

The previous prime is 28298833. The next prime is 28298861. The reversal of 28298843 is 34889282.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28298843 - 2⁸ = 28298587 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28298794 and 28298803.

It is not a weakly prime, because it can be changed into another prime (28298813) 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, 14149421 + 14149422.

It is an arithmetic number, because the mean of its divisors is an integer number (14149422).

Almost surely, 2^28298843 is an apocalyptic number.

28298843 is a deficient number, since it is larger than the sum of its proper divisors (1).

28298843 is an equidigital number, since it uses as much as digits as its factorization.

28298843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 44.

The square root of 28298843 is about 5319.6656849843. The cubic root of 28298843 is about 304.7353899548.

The spelling of 28298843 in words is "twenty-eight million, two hundred ninety-eight thousand, eight hundred forty-three".