28842043 has 2 divisors, whose sum is σ = 28842044. Its totient is φ = 28842042.

The previous prime is 28842001. The next prime is 28842049. The reversal of 28842043 is 34024882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28842043 - 2⁹ = 28841531 is a prime.

It is equal to p_1790464 and since 28842043 and 1790464 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 28841996 and 28842014.

It is not a weakly prime, because it can be changed into another prime (28842049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14421021 + 14421022.

It is an arithmetic number, because the mean of its divisors is an integer number (14421022).

Almost surely, 2^28842043 is an apocalyptic number.

28842043 is a deficient number, since it is larger than the sum of its proper divisors (1).

28842043 is an equidigital number, since it uses as much as digits as its factorization.

28842043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 28842043 is about 5370.4788427104. The cubic root of 28842043 is about 306.6728575992.

The spelling of 28842043 in words is "twenty-eight million, eight hundred forty-two thousand, forty-three".